--- /dev/null
- #ifdef CONFIG_NET_POLL_CONTROLLER
- /**
- * iavf_netpoll - A Polling 'interrupt' handler
- * @netdev: network interface device structure
- *
- * This is used by netconsole to send skbs without having to re-enable
- * interrupts. It's not called while the normal interrupt routine is executing.
- **/
- static void iavf_netpoll(struct net_device *netdev)
- {
- struct iavf_adapter *adapter = netdev_priv(netdev);
- int q_vectors = adapter->num_msix_vectors - NONQ_VECS;
- int i;
-
- /* if interface is down do nothing */
- if (test_bit(__IAVF_VSI_DOWN, adapter->vsi.state))
- return;
-
- for (i = 0; i < q_vectors; i++)
- iavf_msix_clean_rings(0, &adapter->q_vectors[i]);
- }
-
- #endif
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2013 - 2018 Intel Corporation. */
+
+#include "iavf.h"
+#include "iavf_prototype.h"
+#include "iavf_client.h"
+/* All iavf tracepoints are defined by the include below, which must
+ * be included exactly once across the whole kernel with
+ * CREATE_TRACE_POINTS defined
+ */
+#define CREATE_TRACE_POINTS
+#include "iavf_trace.h"
+
+static int iavf_setup_all_tx_resources(struct iavf_adapter *adapter);
+static int iavf_setup_all_rx_resources(struct iavf_adapter *adapter);
+static int iavf_close(struct net_device *netdev);
+
+char iavf_driver_name[] = "iavf";
+static const char iavf_driver_string[] =
+ "Intel(R) Ethernet Adaptive Virtual Function Network Driver";
+
+#define DRV_KERN "-k"
+
+#define DRV_VERSION_MAJOR 3
+#define DRV_VERSION_MINOR 2
+#define DRV_VERSION_BUILD 3
+#define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
+ __stringify(DRV_VERSION_MINOR) "." \
+ __stringify(DRV_VERSION_BUILD) \
+ DRV_KERN
+const char iavf_driver_version[] = DRV_VERSION;
+static const char iavf_copyright[] =
+ "Copyright (c) 2013 - 2018 Intel Corporation.";
+
+/* iavf_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ * Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id iavf_pci_tbl[] = {
+ {PCI_VDEVICE(INTEL, IAVF_DEV_ID_VF), 0},
+ {PCI_VDEVICE(INTEL, IAVF_DEV_ID_VF_HV), 0},
+ {PCI_VDEVICE(INTEL, IAVF_DEV_ID_X722_VF), 0},
+ {PCI_VDEVICE(INTEL, IAVF_DEV_ID_ADAPTIVE_VF), 0},
+ /* required last entry */
+ {0, }
+};
+
+MODULE_DEVICE_TABLE(pci, iavf_pci_tbl);
+
+MODULE_ALIAS("i40evf");
+MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
+MODULE_DESCRIPTION("Intel(R) Ethernet Adaptive Virtual Function Network Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRV_VERSION);
+
+static struct workqueue_struct *iavf_wq;
+
+/**
+ * iavf_allocate_dma_mem_d - OS specific memory alloc for shared code
+ * @hw: pointer to the HW structure
+ * @mem: ptr to mem struct to fill out
+ * @size: size of memory requested
+ * @alignment: what to align the allocation to
+ **/
+iavf_status iavf_allocate_dma_mem_d(struct iavf_hw *hw,
+ struct iavf_dma_mem *mem,
+ u64 size, u32 alignment)
+{
+ struct iavf_adapter *adapter = (struct iavf_adapter *)hw->back;
+
+ if (!mem)
+ return I40E_ERR_PARAM;
+
+ mem->size = ALIGN(size, alignment);
+ mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size,
+ (dma_addr_t *)&mem->pa, GFP_KERNEL);
+ if (mem->va)
+ return 0;
+ else
+ return I40E_ERR_NO_MEMORY;
+}
+
+/**
+ * iavf_free_dma_mem_d - OS specific memory free for shared code
+ * @hw: pointer to the HW structure
+ * @mem: ptr to mem struct to free
+ **/
+iavf_status iavf_free_dma_mem_d(struct iavf_hw *hw, struct iavf_dma_mem *mem)
+{
+ struct iavf_adapter *adapter = (struct iavf_adapter *)hw->back;
+
+ if (!mem || !mem->va)
+ return I40E_ERR_PARAM;
+ dma_free_coherent(&adapter->pdev->dev, mem->size,
+ mem->va, (dma_addr_t)mem->pa);
+ return 0;
+}
+
+/**
+ * iavf_allocate_virt_mem_d - OS specific memory alloc for shared code
+ * @hw: pointer to the HW structure
+ * @mem: ptr to mem struct to fill out
+ * @size: size of memory requested
+ **/
+iavf_status iavf_allocate_virt_mem_d(struct iavf_hw *hw,
+ struct iavf_virt_mem *mem, u32 size)
+{
+ if (!mem)
+ return I40E_ERR_PARAM;
+
+ mem->size = size;
+ mem->va = kzalloc(size, GFP_KERNEL);
+
+ if (mem->va)
+ return 0;
+ else
+ return I40E_ERR_NO_MEMORY;
+}
+
+/**
+ * iavf_free_virt_mem_d - OS specific memory free for shared code
+ * @hw: pointer to the HW structure
+ * @mem: ptr to mem struct to free
+ **/
+iavf_status iavf_free_virt_mem_d(struct iavf_hw *hw, struct iavf_virt_mem *mem)
+{
+ if (!mem)
+ return I40E_ERR_PARAM;
+
+ /* it's ok to kfree a NULL pointer */
+ kfree(mem->va);
+
+ return 0;
+}
+
+/**
+ * iavf_debug_d - OS dependent version of debug printing
+ * @hw: pointer to the HW structure
+ * @mask: debug level mask
+ * @fmt_str: printf-type format description
+ **/
+void iavf_debug_d(void *hw, u32 mask, char *fmt_str, ...)
+{
+ char buf[512];
+ va_list argptr;
+
+ if (!(mask & ((struct iavf_hw *)hw)->debug_mask))
+ return;
+
+ va_start(argptr, fmt_str);
+ vsnprintf(buf, sizeof(buf), fmt_str, argptr);
+ va_end(argptr);
+
+ /* the debug string is already formatted with a newline */
+ pr_info("%s", buf);
+}
+
+/**
+ * iavf_schedule_reset - Set the flags and schedule a reset event
+ * @adapter: board private structure
+ **/
+void iavf_schedule_reset(struct iavf_adapter *adapter)
+{
+ if (!(adapter->flags &
+ (IAVF_FLAG_RESET_PENDING | IAVF_FLAG_RESET_NEEDED))) {
+ adapter->flags |= IAVF_FLAG_RESET_NEEDED;
+ schedule_work(&adapter->reset_task);
+ }
+}
+
+/**
+ * iavf_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ **/
+static void iavf_tx_timeout(struct net_device *netdev)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ adapter->tx_timeout_count++;
+ iavf_schedule_reset(adapter);
+}
+
+/**
+ * iavf_misc_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+static void iavf_misc_irq_disable(struct iavf_adapter *adapter)
+{
+ struct iavf_hw *hw = &adapter->hw;
+
+ if (!adapter->msix_entries)
+ return;
+
+ wr32(hw, IAVF_VFINT_DYN_CTL01, 0);
+
+ iavf_flush(hw);
+
+ synchronize_irq(adapter->msix_entries[0].vector);
+}
+
+/**
+ * iavf_misc_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+static void iavf_misc_irq_enable(struct iavf_adapter *adapter)
+{
+ struct iavf_hw *hw = &adapter->hw;
+
+ wr32(hw, IAVF_VFINT_DYN_CTL01, IAVF_VFINT_DYN_CTL01_INTENA_MASK |
+ IAVF_VFINT_DYN_CTL01_ITR_INDX_MASK);
+ wr32(hw, IAVF_VFINT_ICR0_ENA1, IAVF_VFINT_ICR0_ENA1_ADMINQ_MASK);
+
+ iavf_flush(hw);
+}
+
+/**
+ * iavf_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+static void iavf_irq_disable(struct iavf_adapter *adapter)
+{
+ int i;
+ struct iavf_hw *hw = &adapter->hw;
+
+ if (!adapter->msix_entries)
+ return;
+
+ for (i = 1; i < adapter->num_msix_vectors; i++) {
+ wr32(hw, IAVF_VFINT_DYN_CTLN1(i - 1), 0);
+ synchronize_irq(adapter->msix_entries[i].vector);
+ }
+ iavf_flush(hw);
+}
+
+/**
+ * iavf_irq_enable_queues - Enable interrupt for specified queues
+ * @adapter: board private structure
+ * @mask: bitmap of queues to enable
+ **/
+void iavf_irq_enable_queues(struct iavf_adapter *adapter, u32 mask)
+{
+ struct iavf_hw *hw = &adapter->hw;
+ int i;
+
+ for (i = 1; i < adapter->num_msix_vectors; i++) {
+ if (mask & BIT(i - 1)) {
+ wr32(hw, IAVF_VFINT_DYN_CTLN1(i - 1),
+ IAVF_VFINT_DYN_CTLN1_INTENA_MASK |
+ IAVF_VFINT_DYN_CTLN1_ITR_INDX_MASK);
+ }
+ }
+}
+
+/**
+ * iavf_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ * @flush: boolean value whether to run rd32()
+ **/
+void iavf_irq_enable(struct iavf_adapter *adapter, bool flush)
+{
+ struct iavf_hw *hw = &adapter->hw;
+
+ iavf_misc_irq_enable(adapter);
+ iavf_irq_enable_queues(adapter, ~0);
+
+ if (flush)
+ iavf_flush(hw);
+}
+
+/**
+ * iavf_msix_aq - Interrupt handler for vector 0
+ * @irq: interrupt number
+ * @data: pointer to netdev
+ **/
+static irqreturn_t iavf_msix_aq(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct iavf_hw *hw = &adapter->hw;
+
+ /* handle non-queue interrupts, these reads clear the registers */
+ rd32(hw, IAVF_VFINT_ICR01);
+ rd32(hw, IAVF_VFINT_ICR0_ENA1);
+
+ /* schedule work on the private workqueue */
+ schedule_work(&adapter->adminq_task);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * iavf_msix_clean_rings - MSIX mode Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a q_vector
+ **/
+static irqreturn_t iavf_msix_clean_rings(int irq, void *data)
+{
+ struct iavf_q_vector *q_vector = data;
+
+ if (!q_vector->tx.ring && !q_vector->rx.ring)
+ return IRQ_HANDLED;
+
+ napi_schedule_irqoff(&q_vector->napi);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * iavf_map_vector_to_rxq - associate irqs with rx queues
+ * @adapter: board private structure
+ * @v_idx: interrupt number
+ * @r_idx: queue number
+ **/
+static void
+iavf_map_vector_to_rxq(struct iavf_adapter *adapter, int v_idx, int r_idx)
+{
+ struct iavf_q_vector *q_vector = &adapter->q_vectors[v_idx];
+ struct iavf_ring *rx_ring = &adapter->rx_rings[r_idx];
+ struct iavf_hw *hw = &adapter->hw;
+
+ rx_ring->q_vector = q_vector;
+ rx_ring->next = q_vector->rx.ring;
+ rx_ring->vsi = &adapter->vsi;
+ q_vector->rx.ring = rx_ring;
+ q_vector->rx.count++;
+ q_vector->rx.next_update = jiffies + 1;
+ q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
+ q_vector->ring_mask |= BIT(r_idx);
+ wr32(hw, IAVF_VFINT_ITRN1(IAVF_RX_ITR, q_vector->reg_idx),
+ q_vector->rx.current_itr);
+ q_vector->rx.current_itr = q_vector->rx.target_itr;
+}
+
+/**
+ * iavf_map_vector_to_txq - associate irqs with tx queues
+ * @adapter: board private structure
+ * @v_idx: interrupt number
+ * @t_idx: queue number
+ **/
+static void
+iavf_map_vector_to_txq(struct iavf_adapter *adapter, int v_idx, int t_idx)
+{
+ struct iavf_q_vector *q_vector = &adapter->q_vectors[v_idx];
+ struct iavf_ring *tx_ring = &adapter->tx_rings[t_idx];
+ struct iavf_hw *hw = &adapter->hw;
+
+ tx_ring->q_vector = q_vector;
+ tx_ring->next = q_vector->tx.ring;
+ tx_ring->vsi = &adapter->vsi;
+ q_vector->tx.ring = tx_ring;
+ q_vector->tx.count++;
+ q_vector->tx.next_update = jiffies + 1;
+ q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
+ q_vector->num_ringpairs++;
+ wr32(hw, IAVF_VFINT_ITRN1(IAVF_TX_ITR, q_vector->reg_idx),
+ q_vector->tx.target_itr);
+ q_vector->tx.current_itr = q_vector->tx.target_itr;
+}
+
+/**
+ * iavf_map_rings_to_vectors - Maps descriptor rings to vectors
+ * @adapter: board private structure to initialize
+ *
+ * This function maps descriptor rings to the queue-specific vectors
+ * we were allotted through the MSI-X enabling code. Ideally, we'd have
+ * one vector per ring/queue, but on a constrained vector budget, we
+ * group the rings as "efficiently" as possible. You would add new
+ * mapping configurations in here.
+ **/
+static void iavf_map_rings_to_vectors(struct iavf_adapter *adapter)
+{
+ int rings_remaining = adapter->num_active_queues;
+ int ridx = 0, vidx = 0;
+ int q_vectors;
+
+ q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ for (; ridx < rings_remaining; ridx++) {
+ iavf_map_vector_to_rxq(adapter, vidx, ridx);
+ iavf_map_vector_to_txq(adapter, vidx, ridx);
+
+ /* In the case where we have more queues than vectors, continue
+ * round-robin on vectors until all queues are mapped.
+ */
+ if (++vidx >= q_vectors)
+ vidx = 0;
+ }
+
+ adapter->aq_required |= IAVF_FLAG_AQ_MAP_VECTORS;
+}
+
- #ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = iavf_netpoll,
- #endif
+/**
+ * iavf_irq_affinity_notify - Callback for affinity changes
+ * @notify: context as to what irq was changed
+ * @mask: the new affinity mask
+ *
+ * This is a callback function used by the irq_set_affinity_notifier function
+ * so that we may register to receive changes to the irq affinity masks.
+ **/
+static void iavf_irq_affinity_notify(struct irq_affinity_notify *notify,
+ const cpumask_t *mask)
+{
+ struct iavf_q_vector *q_vector =
+ container_of(notify, struct iavf_q_vector, affinity_notify);
+
+ cpumask_copy(&q_vector->affinity_mask, mask);
+}
+
+/**
+ * iavf_irq_affinity_release - Callback for affinity notifier release
+ * @ref: internal core kernel usage
+ *
+ * This is a callback function used by the irq_set_affinity_notifier function
+ * to inform the current notification subscriber that they will no longer
+ * receive notifications.
+ **/
+static void iavf_irq_affinity_release(struct kref *ref) {}
+
+/**
+ * iavf_request_traffic_irqs - Initialize MSI-X interrupts
+ * @adapter: board private structure
+ * @basename: device basename
+ *
+ * Allocates MSI-X vectors for tx and rx handling, and requests
+ * interrupts from the kernel.
+ **/
+static int
+iavf_request_traffic_irqs(struct iavf_adapter *adapter, char *basename)
+{
+ unsigned int vector, q_vectors;
+ unsigned int rx_int_idx = 0, tx_int_idx = 0;
+ int irq_num, err;
+ int cpu;
+
+ iavf_irq_disable(adapter);
+ /* Decrement for Other and TCP Timer vectors */
+ q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ for (vector = 0; vector < q_vectors; vector++) {
+ struct iavf_q_vector *q_vector = &adapter->q_vectors[vector];
+
+ irq_num = adapter->msix_entries[vector + NONQ_VECS].vector;
+
+ if (q_vector->tx.ring && q_vector->rx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name),
+ "iavf-%s-TxRx-%d", basename, rx_int_idx++);
+ tx_int_idx++;
+ } else if (q_vector->rx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name),
+ "iavf-%s-rx-%d", basename, rx_int_idx++);
+ } else if (q_vector->tx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name),
+ "iavf-%s-tx-%d", basename, tx_int_idx++);
+ } else {
+ /* skip this unused q_vector */
+ continue;
+ }
+ err = request_irq(irq_num,
+ iavf_msix_clean_rings,
+ 0,
+ q_vector->name,
+ q_vector);
+ if (err) {
+ dev_info(&adapter->pdev->dev,
+ "Request_irq failed, error: %d\n", err);
+ goto free_queue_irqs;
+ }
+ /* register for affinity change notifications */
+ q_vector->affinity_notify.notify = iavf_irq_affinity_notify;
+ q_vector->affinity_notify.release =
+ iavf_irq_affinity_release;
+ irq_set_affinity_notifier(irq_num, &q_vector->affinity_notify);
+ /* Spread the IRQ affinity hints across online CPUs. Note that
+ * get_cpu_mask returns a mask with a permanent lifetime so
+ * it's safe to use as a hint for irq_set_affinity_hint.
+ */
+ cpu = cpumask_local_spread(q_vector->v_idx, -1);
+ irq_set_affinity_hint(irq_num, get_cpu_mask(cpu));
+ }
+
+ return 0;
+
+free_queue_irqs:
+ while (vector) {
+ vector--;
+ irq_num = adapter->msix_entries[vector + NONQ_VECS].vector;
+ irq_set_affinity_notifier(irq_num, NULL);
+ irq_set_affinity_hint(irq_num, NULL);
+ free_irq(irq_num, &adapter->q_vectors[vector]);
+ }
+ return err;
+}
+
+/**
+ * iavf_request_misc_irq - Initialize MSI-X interrupts
+ * @adapter: board private structure
+ *
+ * Allocates MSI-X vector 0 and requests interrupts from the kernel. This
+ * vector is only for the admin queue, and stays active even when the netdev
+ * is closed.
+ **/
+static int iavf_request_misc_irq(struct iavf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err;
+
+ snprintf(adapter->misc_vector_name,
+ sizeof(adapter->misc_vector_name) - 1, "iavf-%s:mbx",
+ dev_name(&adapter->pdev->dev));
+ err = request_irq(adapter->msix_entries[0].vector,
+ &iavf_msix_aq, 0,
+ adapter->misc_vector_name, netdev);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "request_irq for %s failed: %d\n",
+ adapter->misc_vector_name, err);
+ free_irq(adapter->msix_entries[0].vector, netdev);
+ }
+ return err;
+}
+
+/**
+ * iavf_free_traffic_irqs - Free MSI-X interrupts
+ * @adapter: board private structure
+ *
+ * Frees all MSI-X vectors other than 0.
+ **/
+static void iavf_free_traffic_irqs(struct iavf_adapter *adapter)
+{
+ int vector, irq_num, q_vectors;
+
+ if (!adapter->msix_entries)
+ return;
+
+ q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ for (vector = 0; vector < q_vectors; vector++) {
+ irq_num = adapter->msix_entries[vector + NONQ_VECS].vector;
+ irq_set_affinity_notifier(irq_num, NULL);
+ irq_set_affinity_hint(irq_num, NULL);
+ free_irq(irq_num, &adapter->q_vectors[vector]);
+ }
+}
+
+/**
+ * iavf_free_misc_irq - Free MSI-X miscellaneous vector
+ * @adapter: board private structure
+ *
+ * Frees MSI-X vector 0.
+ **/
+static void iavf_free_misc_irq(struct iavf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (!adapter->msix_entries)
+ return;
+
+ free_irq(adapter->msix_entries[0].vector, netdev);
+}
+
+/**
+ * iavf_configure_tx - Configure Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+static void iavf_configure_tx(struct iavf_adapter *adapter)
+{
+ struct iavf_hw *hw = &adapter->hw;
+ int i;
+
+ for (i = 0; i < adapter->num_active_queues; i++)
+ adapter->tx_rings[i].tail = hw->hw_addr + IAVF_QTX_TAIL1(i);
+}
+
+/**
+ * iavf_configure_rx - Configure Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void iavf_configure_rx(struct iavf_adapter *adapter)
+{
+ unsigned int rx_buf_len = IAVF_RXBUFFER_2048;
+ struct iavf_hw *hw = &adapter->hw;
+ int i;
+
+ /* Legacy Rx will always default to a 2048 buffer size. */
+#if (PAGE_SIZE < 8192)
+ if (!(adapter->flags & IAVF_FLAG_LEGACY_RX)) {
+ struct net_device *netdev = adapter->netdev;
+
+ /* For jumbo frames on systems with 4K pages we have to use
+ * an order 1 page, so we might as well increase the size
+ * of our Rx buffer to make better use of the available space
+ */
+ rx_buf_len = IAVF_RXBUFFER_3072;
+
+ /* We use a 1536 buffer size for configurations with
+ * standard Ethernet mtu. On x86 this gives us enough room
+ * for shared info and 192 bytes of padding.
+ */
+ if (!IAVF_2K_TOO_SMALL_WITH_PADDING &&
+ (netdev->mtu <= ETH_DATA_LEN))
+ rx_buf_len = IAVF_RXBUFFER_1536 - NET_IP_ALIGN;
+ }
+#endif
+
+ for (i = 0; i < adapter->num_active_queues; i++) {
+ adapter->rx_rings[i].tail = hw->hw_addr + IAVF_QRX_TAIL1(i);
+ adapter->rx_rings[i].rx_buf_len = rx_buf_len;
+
+ if (adapter->flags & IAVF_FLAG_LEGACY_RX)
+ clear_ring_build_skb_enabled(&adapter->rx_rings[i]);
+ else
+ set_ring_build_skb_enabled(&adapter->rx_rings[i]);
+ }
+}
+
+/**
+ * iavf_find_vlan - Search filter list for specific vlan filter
+ * @adapter: board private structure
+ * @vlan: vlan tag
+ *
+ * Returns ptr to the filter object or NULL. Must be called while holding the
+ * mac_vlan_list_lock.
+ **/
+static struct
+iavf_vlan_filter *iavf_find_vlan(struct iavf_adapter *adapter, u16 vlan)
+{
+ struct iavf_vlan_filter *f;
+
+ list_for_each_entry(f, &adapter->vlan_filter_list, list) {
+ if (vlan == f->vlan)
+ return f;
+ }
+ return NULL;
+}
+
+/**
+ * iavf_add_vlan - Add a vlan filter to the list
+ * @adapter: board private structure
+ * @vlan: VLAN tag
+ *
+ * Returns ptr to the filter object or NULL when no memory available.
+ **/
+static struct
+iavf_vlan_filter *iavf_add_vlan(struct iavf_adapter *adapter, u16 vlan)
+{
+ struct iavf_vlan_filter *f = NULL;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ f = iavf_find_vlan(adapter, vlan);
+ if (!f) {
+ f = kzalloc(sizeof(*f), GFP_KERNEL);
+ if (!f)
+ goto clearout;
+
+ f->vlan = vlan;
+
+ INIT_LIST_HEAD(&f->list);
+ list_add(&f->list, &adapter->vlan_filter_list);
+ f->add = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_VLAN_FILTER;
+ }
+
+clearout:
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+ return f;
+}
+
+/**
+ * iavf_del_vlan - Remove a vlan filter from the list
+ * @adapter: board private structure
+ * @vlan: VLAN tag
+ **/
+static void iavf_del_vlan(struct iavf_adapter *adapter, u16 vlan)
+{
+ struct iavf_vlan_filter *f;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ f = iavf_find_vlan(adapter, vlan);
+ if (f) {
+ f->remove = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_VLAN_FILTER;
+ }
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+}
+
+/**
+ * iavf_vlan_rx_add_vid - Add a VLAN filter to a device
+ * @netdev: network device struct
+ * @proto: unused protocol data
+ * @vid: VLAN tag
+ **/
+static int iavf_vlan_rx_add_vid(struct net_device *netdev,
+ __always_unused __be16 proto, u16 vid)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ if (!VLAN_ALLOWED(adapter))
+ return -EIO;
+ if (iavf_add_vlan(adapter, vid) == NULL)
+ return -ENOMEM;
+ return 0;
+}
+
+/**
+ * iavf_vlan_rx_kill_vid - Remove a VLAN filter from a device
+ * @netdev: network device struct
+ * @proto: unused protocol data
+ * @vid: VLAN tag
+ **/
+static int iavf_vlan_rx_kill_vid(struct net_device *netdev,
+ __always_unused __be16 proto, u16 vid)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ if (VLAN_ALLOWED(adapter)) {
+ iavf_del_vlan(adapter, vid);
+ return 0;
+ }
+ return -EIO;
+}
+
+/**
+ * iavf_find_filter - Search filter list for specific mac filter
+ * @adapter: board private structure
+ * @macaddr: the MAC address
+ *
+ * Returns ptr to the filter object or NULL. Must be called while holding the
+ * mac_vlan_list_lock.
+ **/
+static struct
+iavf_mac_filter *iavf_find_filter(struct iavf_adapter *adapter,
+ const u8 *macaddr)
+{
+ struct iavf_mac_filter *f;
+
+ if (!macaddr)
+ return NULL;
+
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ if (ether_addr_equal(macaddr, f->macaddr))
+ return f;
+ }
+ return NULL;
+}
+
+/**
+ * iavf_add_filter - Add a mac filter to the filter list
+ * @adapter: board private structure
+ * @macaddr: the MAC address
+ *
+ * Returns ptr to the filter object or NULL when no memory available.
+ **/
+static struct
+iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
+ const u8 *macaddr)
+{
+ struct iavf_mac_filter *f;
+
+ if (!macaddr)
+ return NULL;
+
+ f = iavf_find_filter(adapter, macaddr);
+ if (!f) {
+ f = kzalloc(sizeof(*f), GFP_ATOMIC);
+ if (!f)
+ return f;
+
+ ether_addr_copy(f->macaddr, macaddr);
+
+ list_add_tail(&f->list, &adapter->mac_filter_list);
+ f->add = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_MAC_FILTER;
+ } else {
+ f->remove = false;
+ }
+
+ return f;
+}
+
+/**
+ * iavf_set_mac - NDO callback to set port mac address
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int iavf_set_mac(struct net_device *netdev, void *p)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct iavf_hw *hw = &adapter->hw;
+ struct iavf_mac_filter *f;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ if (ether_addr_equal(netdev->dev_addr, addr->sa_data))
+ return 0;
+
+ if (adapter->flags & IAVF_FLAG_ADDR_SET_BY_PF)
+ return -EPERM;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ f = iavf_find_filter(adapter, hw->mac.addr);
+ if (f) {
+ f->remove = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_MAC_FILTER;
+ }
+
+ f = iavf_add_filter(adapter, addr->sa_data);
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ if (f) {
+ ether_addr_copy(hw->mac.addr, addr->sa_data);
+ ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
+ }
+
+ return (f == NULL) ? -ENOMEM : 0;
+}
+
+/**
+ * iavf_addr_sync - Callback for dev_(mc|uc)_sync to add address
+ * @netdev: the netdevice
+ * @addr: address to add
+ *
+ * Called by __dev_(mc|uc)_sync when an address needs to be added. We call
+ * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock.
+ */
+static int iavf_addr_sync(struct net_device *netdev, const u8 *addr)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ if (iavf_add_filter(adapter, addr))
+ return 0;
+ else
+ return -ENOMEM;
+}
+
+/**
+ * iavf_addr_unsync - Callback for dev_(mc|uc)_sync to remove address
+ * @netdev: the netdevice
+ * @addr: address to add
+ *
+ * Called by __dev_(mc|uc)_sync when an address needs to be removed. We call
+ * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock.
+ */
+static int iavf_addr_unsync(struct net_device *netdev, const u8 *addr)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct iavf_mac_filter *f;
+
+ /* Under some circumstances, we might receive a request to delete
+ * our own device address from our uc list. Because we store the
+ * device address in the VSI's MAC/VLAN filter list, we need to ignore
+ * such requests and not delete our device address from this list.
+ */
+ if (ether_addr_equal(addr, netdev->dev_addr))
+ return 0;
+
+ f = iavf_find_filter(adapter, addr);
+ if (f) {
+ f->remove = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_MAC_FILTER;
+ }
+ return 0;
+}
+
+/**
+ * iavf_set_rx_mode - NDO callback to set the netdev filters
+ * @netdev: network interface device structure
+ **/
+static void iavf_set_rx_mode(struct net_device *netdev)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+ __dev_uc_sync(netdev, iavf_addr_sync, iavf_addr_unsync);
+ __dev_mc_sync(netdev, iavf_addr_sync, iavf_addr_unsync);
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ if (netdev->flags & IFF_PROMISC &&
+ !(adapter->flags & IAVF_FLAG_PROMISC_ON))
+ adapter->aq_required |= IAVF_FLAG_AQ_REQUEST_PROMISC;
+ else if (!(netdev->flags & IFF_PROMISC) &&
+ adapter->flags & IAVF_FLAG_PROMISC_ON)
+ adapter->aq_required |= IAVF_FLAG_AQ_RELEASE_PROMISC;
+
+ if (netdev->flags & IFF_ALLMULTI &&
+ !(adapter->flags & IAVF_FLAG_ALLMULTI_ON))
+ adapter->aq_required |= IAVF_FLAG_AQ_REQUEST_ALLMULTI;
+ else if (!(netdev->flags & IFF_ALLMULTI) &&
+ adapter->flags & IAVF_FLAG_ALLMULTI_ON)
+ adapter->aq_required |= IAVF_FLAG_AQ_RELEASE_ALLMULTI;
+}
+
+/**
+ * iavf_napi_enable_all - enable NAPI on all queue vectors
+ * @adapter: board private structure
+ **/
+static void iavf_napi_enable_all(struct iavf_adapter *adapter)
+{
+ int q_idx;
+ struct iavf_q_vector *q_vector;
+ int q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ for (q_idx = 0; q_idx < q_vectors; q_idx++) {
+ struct napi_struct *napi;
+
+ q_vector = &adapter->q_vectors[q_idx];
+ napi = &q_vector->napi;
+ napi_enable(napi);
+ }
+}
+
+/**
+ * iavf_napi_disable_all - disable NAPI on all queue vectors
+ * @adapter: board private structure
+ **/
+static void iavf_napi_disable_all(struct iavf_adapter *adapter)
+{
+ int q_idx;
+ struct iavf_q_vector *q_vector;
+ int q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+
+ for (q_idx = 0; q_idx < q_vectors; q_idx++) {
+ q_vector = &adapter->q_vectors[q_idx];
+ napi_disable(&q_vector->napi);
+ }
+}
+
+/**
+ * iavf_configure - set up transmit and receive data structures
+ * @adapter: board private structure
+ **/
+static void iavf_configure(struct iavf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int i;
+
+ iavf_set_rx_mode(netdev);
+
+ iavf_configure_tx(adapter);
+ iavf_configure_rx(adapter);
+ adapter->aq_required |= IAVF_FLAG_AQ_CONFIGURE_QUEUES;
+
+ for (i = 0; i < adapter->num_active_queues; i++) {
+ struct iavf_ring *ring = &adapter->rx_rings[i];
+
+ iavf_alloc_rx_buffers(ring, IAVF_DESC_UNUSED(ring));
+ }
+}
+
+/**
+ * iavf_up_complete - Finish the last steps of bringing up a connection
+ * @adapter: board private structure
+ *
+ * Expects to be called while holding the __IAVF_IN_CRITICAL_TASK bit lock.
+ **/
+static void iavf_up_complete(struct iavf_adapter *adapter)
+{
+ adapter->state = __IAVF_RUNNING;
+ clear_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
+
+ iavf_napi_enable_all(adapter);
+
+ adapter->aq_required |= IAVF_FLAG_AQ_ENABLE_QUEUES;
+ if (CLIENT_ENABLED(adapter))
+ adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_OPEN;
+ mod_timer_pending(&adapter->watchdog_timer, jiffies + 1);
+}
+
+/**
+ * iavf_down - Shutdown the connection processing
+ * @adapter: board private structure
+ *
+ * Expects to be called while holding the __IAVF_IN_CRITICAL_TASK bit lock.
+ **/
+void iavf_down(struct iavf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct iavf_vlan_filter *vlf;
+ struct iavf_mac_filter *f;
+ struct iavf_cloud_filter *cf;
+
+ if (adapter->state <= __IAVF_DOWN_PENDING)
+ return;
+
+ netif_carrier_off(netdev);
+ netif_tx_disable(netdev);
+ adapter->link_up = false;
+ iavf_napi_disable_all(adapter);
+ iavf_irq_disable(adapter);
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ /* clear the sync flag on all filters */
+ __dev_uc_unsync(adapter->netdev, NULL);
+ __dev_mc_unsync(adapter->netdev, NULL);
+
+ /* remove all MAC filters */
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ f->remove = true;
+ }
+
+ /* remove all VLAN filters */
+ list_for_each_entry(vlf, &adapter->vlan_filter_list, list) {
+ vlf->remove = true;
+ }
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ /* remove all cloud filters */
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
+ cf->del = true;
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+
+ if (!(adapter->flags & IAVF_FLAG_PF_COMMS_FAILED) &&
+ adapter->state != __IAVF_RESETTING) {
+ /* cancel any current operation */
+ adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+ /* Schedule operations to close down the HW. Don't wait
+ * here for this to complete. The watchdog is still running
+ * and it will take care of this.
+ */
+ adapter->aq_required = IAVF_FLAG_AQ_DEL_MAC_FILTER;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_VLAN_FILTER;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
+ adapter->aq_required |= IAVF_FLAG_AQ_DISABLE_QUEUES;
+ }
+
+ mod_timer_pending(&adapter->watchdog_timer, jiffies + 1);
+}
+
+/**
+ * iavf_acquire_msix_vectors - Setup the MSIX capability
+ * @adapter: board private structure
+ * @vectors: number of vectors to request
+ *
+ * Work with the OS to set up the MSIX vectors needed.
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int
+iavf_acquire_msix_vectors(struct iavf_adapter *adapter, int vectors)
+{
+ int err, vector_threshold;
+
+ /* We'll want at least 3 (vector_threshold):
+ * 0) Other (Admin Queue and link, mostly)
+ * 1) TxQ[0] Cleanup
+ * 2) RxQ[0] Cleanup
+ */
+ vector_threshold = MIN_MSIX_COUNT;
+
+ /* The more we get, the more we will assign to Tx/Rx Cleanup
+ * for the separate queues...where Rx Cleanup >= Tx Cleanup.
+ * Right now, we simply care about how many we'll get; we'll
+ * set them up later while requesting irq's.
+ */
+ err = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
+ vector_threshold, vectors);
+ if (err < 0) {
+ dev_err(&adapter->pdev->dev, "Unable to allocate MSI-X interrupts\n");
+ kfree(adapter->msix_entries);
+ adapter->msix_entries = NULL;
+ return err;
+ }
+
+ /* Adjust for only the vectors we'll use, which is minimum
+ * of max_msix_q_vectors + NONQ_VECS, or the number of
+ * vectors we were allocated.
+ */
+ adapter->num_msix_vectors = err;
+ return 0;
+}
+
+/**
+ * iavf_free_queues - Free memory for all rings
+ * @adapter: board private structure to initialize
+ *
+ * Free all of the memory associated with queue pairs.
+ **/
+static void iavf_free_queues(struct iavf_adapter *adapter)
+{
+ if (!adapter->vsi_res)
+ return;
+ adapter->num_active_queues = 0;
+ kfree(adapter->tx_rings);
+ adapter->tx_rings = NULL;
+ kfree(adapter->rx_rings);
+ adapter->rx_rings = NULL;
+}
+
+/**
+ * iavf_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ *
+ * We allocate one ring per queue at run-time since we don't know the
+ * number of queues at compile-time. The polling_netdev array is
+ * intended for Multiqueue, but should work fine with a single queue.
+ **/
+static int iavf_alloc_queues(struct iavf_adapter *adapter)
+{
+ int i, num_active_queues;
+
+ /* If we're in reset reallocating queues we don't actually know yet for
+ * certain the PF gave us the number of queues we asked for but we'll
+ * assume it did. Once basic reset is finished we'll confirm once we
+ * start negotiating config with PF.
+ */
+ if (adapter->num_req_queues)
+ num_active_queues = adapter->num_req_queues;
+ else if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
+ adapter->num_tc)
+ num_active_queues = adapter->ch_config.total_qps;
+ else
+ num_active_queues = min_t(int,
+ adapter->vsi_res->num_queue_pairs,
+ (int)(num_online_cpus()));
+
+
+ adapter->tx_rings = kcalloc(num_active_queues,
+ sizeof(struct iavf_ring), GFP_KERNEL);
+ if (!adapter->tx_rings)
+ goto err_out;
+ adapter->rx_rings = kcalloc(num_active_queues,
+ sizeof(struct iavf_ring), GFP_KERNEL);
+ if (!adapter->rx_rings)
+ goto err_out;
+
+ for (i = 0; i < num_active_queues; i++) {
+ struct iavf_ring *tx_ring;
+ struct iavf_ring *rx_ring;
+
+ tx_ring = &adapter->tx_rings[i];
+
+ tx_ring->queue_index = i;
+ tx_ring->netdev = adapter->netdev;
+ tx_ring->dev = &adapter->pdev->dev;
+ tx_ring->count = adapter->tx_desc_count;
+ tx_ring->itr_setting = IAVF_ITR_TX_DEF;
+ if (adapter->flags & IAVF_FLAG_WB_ON_ITR_CAPABLE)
+ tx_ring->flags |= IAVF_TXR_FLAGS_WB_ON_ITR;
+
+ rx_ring = &adapter->rx_rings[i];
+ rx_ring->queue_index = i;
+ rx_ring->netdev = adapter->netdev;
+ rx_ring->dev = &adapter->pdev->dev;
+ rx_ring->count = adapter->rx_desc_count;
+ rx_ring->itr_setting = IAVF_ITR_RX_DEF;
+ }
+
+ adapter->num_active_queues = num_active_queues;
+
+ return 0;
+
+err_out:
+ iavf_free_queues(adapter);
+ return -ENOMEM;
+}
+
+/**
+ * iavf_set_interrupt_capability - set MSI-X or FAIL if not supported
+ * @adapter: board private structure to initialize
+ *
+ * Attempt to configure the interrupts using the best available
+ * capabilities of the hardware and the kernel.
+ **/
+static int iavf_set_interrupt_capability(struct iavf_adapter *adapter)
+{
+ int vector, v_budget;
+ int pairs = 0;
+ int err = 0;
+
+ if (!adapter->vsi_res) {
+ err = -EIO;
+ goto out;
+ }
+ pairs = adapter->num_active_queues;
+
+ /* It's easy to be greedy for MSI-X vectors, but it really doesn't do
+ * us much good if we have more vectors than CPUs. However, we already
+ * limit the total number of queues by the number of CPUs so we do not
+ * need any further limiting here.
+ */
+ v_budget = min_t(int, pairs + NONQ_VECS,
+ (int)adapter->vf_res->max_vectors);
+
+ adapter->msix_entries = kcalloc(v_budget,
+ sizeof(struct msix_entry), GFP_KERNEL);
+ if (!adapter->msix_entries) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ for (vector = 0; vector < v_budget; vector++)
+ adapter->msix_entries[vector].entry = vector;
+
+ err = iavf_acquire_msix_vectors(adapter, v_budget);
+
+out:
+ netif_set_real_num_rx_queues(adapter->netdev, pairs);
+ netif_set_real_num_tx_queues(adapter->netdev, pairs);
+ return err;
+}
+
+/**
+ * iavf_config_rss_aq - Configure RSS keys and lut by using AQ commands
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int iavf_config_rss_aq(struct iavf_adapter *adapter)
+{
+ struct i40e_aqc_get_set_rss_key_data *rss_key =
+ (struct i40e_aqc_get_set_rss_key_data *)adapter->rss_key;
+ struct iavf_hw *hw = &adapter->hw;
+ int ret = 0;
+
+ if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
+ /* bail because we already have a command pending */
+ dev_err(&adapter->pdev->dev, "Cannot configure RSS, command %d pending\n",
+ adapter->current_op);
+ return -EBUSY;
+ }
+
+ ret = iavf_aq_set_rss_key(hw, adapter->vsi.id, rss_key);
+ if (ret) {
+ dev_err(&adapter->pdev->dev, "Cannot set RSS key, err %s aq_err %s\n",
+ iavf_stat_str(hw, ret),
+ iavf_aq_str(hw, hw->aq.asq_last_status));
+ return ret;
+
+ }
+
+ ret = iavf_aq_set_rss_lut(hw, adapter->vsi.id, false,
+ adapter->rss_lut, adapter->rss_lut_size);
+ if (ret) {
+ dev_err(&adapter->pdev->dev, "Cannot set RSS lut, err %s aq_err %s\n",
+ iavf_stat_str(hw, ret),
+ iavf_aq_str(hw, hw->aq.asq_last_status));
+ }
+
+ return ret;
+
+}
+
+/**
+ * iavf_config_rss_reg - Configure RSS keys and lut by writing registers
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int iavf_config_rss_reg(struct iavf_adapter *adapter)
+{
+ struct iavf_hw *hw = &adapter->hw;
+ u32 *dw;
+ u16 i;
+
+ dw = (u32 *)adapter->rss_key;
+ for (i = 0; i <= adapter->rss_key_size / 4; i++)
+ wr32(hw, IAVF_VFQF_HKEY(i), dw[i]);
+
+ dw = (u32 *)adapter->rss_lut;
+ for (i = 0; i <= adapter->rss_lut_size / 4; i++)
+ wr32(hw, IAVF_VFQF_HLUT(i), dw[i]);
+
+ iavf_flush(hw);
+
+ return 0;
+}
+
+/**
+ * iavf_config_rss - Configure RSS keys and lut
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+int iavf_config_rss(struct iavf_adapter *adapter)
+{
+
+ if (RSS_PF(adapter)) {
+ adapter->aq_required |= IAVF_FLAG_AQ_SET_RSS_LUT |
+ IAVF_FLAG_AQ_SET_RSS_KEY;
+ return 0;
+ } else if (RSS_AQ(adapter)) {
+ return iavf_config_rss_aq(adapter);
+ } else {
+ return iavf_config_rss_reg(adapter);
+ }
+}
+
+/**
+ * iavf_fill_rss_lut - Fill the lut with default values
+ * @adapter: board private structure
+ **/
+static void iavf_fill_rss_lut(struct iavf_adapter *adapter)
+{
+ u16 i;
+
+ for (i = 0; i < adapter->rss_lut_size; i++)
+ adapter->rss_lut[i] = i % adapter->num_active_queues;
+}
+
+/**
+ * iavf_init_rss - Prepare for RSS
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int iavf_init_rss(struct iavf_adapter *adapter)
+{
+ struct iavf_hw *hw = &adapter->hw;
+ int ret;
+
+ if (!RSS_PF(adapter)) {
+ /* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */
+ if (adapter->vf_res->vf_cap_flags &
+ VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
+ adapter->hena = IAVF_DEFAULT_RSS_HENA_EXPANDED;
+ else
+ adapter->hena = IAVF_DEFAULT_RSS_HENA;
+
+ wr32(hw, IAVF_VFQF_HENA(0), (u32)adapter->hena);
+ wr32(hw, IAVF_VFQF_HENA(1), (u32)(adapter->hena >> 32));
+ }
+
+ iavf_fill_rss_lut(adapter);
+ netdev_rss_key_fill((void *)adapter->rss_key, adapter->rss_key_size);
+ ret = iavf_config_rss(adapter);
+
+ return ret;
+}
+
+/**
+ * iavf_alloc_q_vectors - Allocate memory for interrupt vectors
+ * @adapter: board private structure to initialize
+ *
+ * We allocate one q_vector per queue interrupt. If allocation fails we
+ * return -ENOMEM.
+ **/
+static int iavf_alloc_q_vectors(struct iavf_adapter *adapter)
+{
+ int q_idx = 0, num_q_vectors;
+ struct iavf_q_vector *q_vector;
+
+ num_q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+ adapter->q_vectors = kcalloc(num_q_vectors, sizeof(*q_vector),
+ GFP_KERNEL);
+ if (!adapter->q_vectors)
+ return -ENOMEM;
+
+ for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
+ q_vector = &adapter->q_vectors[q_idx];
+ q_vector->adapter = adapter;
+ q_vector->vsi = &adapter->vsi;
+ q_vector->v_idx = q_idx;
+ q_vector->reg_idx = q_idx;
+ cpumask_copy(&q_vector->affinity_mask, cpu_possible_mask);
+ netif_napi_add(adapter->netdev, &q_vector->napi,
+ iavf_napi_poll, NAPI_POLL_WEIGHT);
+ }
+
+ return 0;
+}
+
+/**
+ * iavf_free_q_vectors - Free memory allocated for interrupt vectors
+ * @adapter: board private structure to initialize
+ *
+ * This function frees the memory allocated to the q_vectors. In addition if
+ * NAPI is enabled it will delete any references to the NAPI struct prior
+ * to freeing the q_vector.
+ **/
+static void iavf_free_q_vectors(struct iavf_adapter *adapter)
+{
+ int q_idx, num_q_vectors;
+ int napi_vectors;
+
+ if (!adapter->q_vectors)
+ return;
+
+ num_q_vectors = adapter->num_msix_vectors - NONQ_VECS;
+ napi_vectors = adapter->num_active_queues;
+
+ for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
+ struct iavf_q_vector *q_vector = &adapter->q_vectors[q_idx];
+
+ if (q_idx < napi_vectors)
+ netif_napi_del(&q_vector->napi);
+ }
+ kfree(adapter->q_vectors);
+ adapter->q_vectors = NULL;
+}
+
+/**
+ * iavf_reset_interrupt_capability - Reset MSIX setup
+ * @adapter: board private structure
+ *
+ **/
+void iavf_reset_interrupt_capability(struct iavf_adapter *adapter)
+{
+ if (!adapter->msix_entries)
+ return;
+
+ pci_disable_msix(adapter->pdev);
+ kfree(adapter->msix_entries);
+ adapter->msix_entries = NULL;
+}
+
+/**
+ * iavf_init_interrupt_scheme - Determine if MSIX is supported and init
+ * @adapter: board private structure to initialize
+ *
+ **/
+int iavf_init_interrupt_scheme(struct iavf_adapter *adapter)
+{
+ int err;
+
+ err = iavf_alloc_queues(adapter);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "Unable to allocate memory for queues\n");
+ goto err_alloc_queues;
+ }
+
+ rtnl_lock();
+ err = iavf_set_interrupt_capability(adapter);
+ rtnl_unlock();
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "Unable to setup interrupt capabilities\n");
+ goto err_set_interrupt;
+ }
+
+ err = iavf_alloc_q_vectors(adapter);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "Unable to allocate memory for queue vectors\n");
+ goto err_alloc_q_vectors;
+ }
+
+ /* If we've made it so far while ADq flag being ON, then we haven't
+ * bailed out anywhere in middle. And ADq isn't just enabled but actual
+ * resources have been allocated in the reset path.
+ * Now we can truly claim that ADq is enabled.
+ */
+ if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
+ adapter->num_tc)
+ dev_info(&adapter->pdev->dev, "ADq Enabled, %u TCs created",
+ adapter->num_tc);
+
+ dev_info(&adapter->pdev->dev, "Multiqueue %s: Queue pair count = %u",
+ (adapter->num_active_queues > 1) ? "Enabled" : "Disabled",
+ adapter->num_active_queues);
+
+ return 0;
+err_alloc_q_vectors:
+ iavf_reset_interrupt_capability(adapter);
+err_set_interrupt:
+ iavf_free_queues(adapter);
+err_alloc_queues:
+ return err;
+}
+
+/**
+ * iavf_free_rss - Free memory used by RSS structs
+ * @adapter: board private structure
+ **/
+static void iavf_free_rss(struct iavf_adapter *adapter)
+{
+ kfree(adapter->rss_key);
+ adapter->rss_key = NULL;
+
+ kfree(adapter->rss_lut);
+ adapter->rss_lut = NULL;
+}
+
+/**
+ * iavf_reinit_interrupt_scheme - Reallocate queues and vectors
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int iavf_reinit_interrupt_scheme(struct iavf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err;
+
+ if (netif_running(netdev))
+ iavf_free_traffic_irqs(adapter);
+ iavf_free_misc_irq(adapter);
+ iavf_reset_interrupt_capability(adapter);
+ iavf_free_q_vectors(adapter);
+ iavf_free_queues(adapter);
+
+ err = iavf_init_interrupt_scheme(adapter);
+ if (err)
+ goto err;
+
+ netif_tx_stop_all_queues(netdev);
+
+ err = iavf_request_misc_irq(adapter);
+ if (err)
+ goto err;
+
+ set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
+
+ iavf_map_rings_to_vectors(adapter);
+
+ if (RSS_AQ(adapter))
+ adapter->aq_required |= IAVF_FLAG_AQ_CONFIGURE_RSS;
+ else
+ err = iavf_init_rss(adapter);
+err:
+ return err;
+}
+
+/**
+ * iavf_watchdog_timer - Periodic call-back timer
+ * @data: pointer to adapter disguised as unsigned long
+ **/
+static void iavf_watchdog_timer(struct timer_list *t)
+{
+ struct iavf_adapter *adapter = from_timer(adapter, t,
+ watchdog_timer);
+
+ schedule_work(&adapter->watchdog_task);
+ /* timer will be rescheduled in watchdog task */
+}
+
+/**
+ * iavf_watchdog_task - Periodic call-back task
+ * @work: pointer to work_struct
+ **/
+static void iavf_watchdog_task(struct work_struct *work)
+{
+ struct iavf_adapter *adapter = container_of(work,
+ struct iavf_adapter,
+ watchdog_task);
+ struct iavf_hw *hw = &adapter->hw;
+ u32 reg_val;
+
+ if (test_and_set_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section))
+ goto restart_watchdog;
+
+ if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED) {
+ reg_val = rd32(hw, IAVF_VFGEN_RSTAT) &
+ IAVF_VFGEN_RSTAT_VFR_STATE_MASK;
+ if ((reg_val == VIRTCHNL_VFR_VFACTIVE) ||
+ (reg_val == VIRTCHNL_VFR_COMPLETED)) {
+ /* A chance for redemption! */
+ dev_err(&adapter->pdev->dev, "Hardware came out of reset. Attempting reinit.\n");
+ adapter->state = __IAVF_STARTUP;
+ adapter->flags &= ~IAVF_FLAG_PF_COMMS_FAILED;
+ schedule_delayed_work(&adapter->init_task, 10);
+ clear_bit(__IAVF_IN_CRITICAL_TASK,
+ &adapter->crit_section);
+ /* Don't reschedule the watchdog, since we've restarted
+ * the init task. When init_task contacts the PF and
+ * gets everything set up again, it'll restart the
+ * watchdog for us. Down, boy. Sit. Stay. Woof.
+ */
+ return;
+ }
+ adapter->aq_required = 0;
+ adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+ goto watchdog_done;
+ }
+
+ if ((adapter->state < __IAVF_DOWN) ||
+ (adapter->flags & IAVF_FLAG_RESET_PENDING))
+ goto watchdog_done;
+
+ /* check for reset */
+ reg_val = rd32(hw, IAVF_VF_ARQLEN1) & IAVF_VF_ARQLEN1_ARQENABLE_MASK;
+ if (!(adapter->flags & IAVF_FLAG_RESET_PENDING) && !reg_val) {
+ adapter->state = __IAVF_RESETTING;
+ adapter->flags |= IAVF_FLAG_RESET_PENDING;
+ dev_err(&adapter->pdev->dev, "Hardware reset detected\n");
+ schedule_work(&adapter->reset_task);
+ adapter->aq_required = 0;
+ adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+ goto watchdog_done;
+ }
+
+ /* Process admin queue tasks. After init, everything gets done
+ * here so we don't race on the admin queue.
+ */
+ if (adapter->current_op) {
+ if (!iavf_asq_done(hw)) {
+ dev_dbg(&adapter->pdev->dev, "Admin queue timeout\n");
+ iavf_send_api_ver(adapter);
+ }
+ goto watchdog_done;
+ }
+ if (adapter->aq_required & IAVF_FLAG_AQ_GET_CONFIG) {
+ iavf_send_vf_config_msg(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_QUEUES) {
+ iavf_disable_queues(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_MAP_VECTORS) {
+ iavf_map_queues(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ADD_MAC_FILTER) {
+ iavf_add_ether_addrs(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ADD_VLAN_FILTER) {
+ iavf_add_vlans(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DEL_MAC_FILTER) {
+ iavf_del_ether_addrs(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DEL_VLAN_FILTER) {
+ iavf_del_vlans(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING) {
+ iavf_enable_vlan_stripping(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING) {
+ iavf_disable_vlan_stripping(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_CONFIGURE_QUEUES) {
+ iavf_configure_queues(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_QUEUES) {
+ iavf_enable_queues(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_CONFIGURE_RSS) {
+ /* This message goes straight to the firmware, not the
+ * PF, so we don't have to set current_op as we will
+ * not get a response through the ARQ.
+ */
+ iavf_init_rss(adapter);
+ adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_RSS;
+ goto watchdog_done;
+ }
+ if (adapter->aq_required & IAVF_FLAG_AQ_GET_HENA) {
+ iavf_get_hena(adapter);
+ goto watchdog_done;
+ }
+ if (adapter->aq_required & IAVF_FLAG_AQ_SET_HENA) {
+ iavf_set_hena(adapter);
+ goto watchdog_done;
+ }
+ if (adapter->aq_required & IAVF_FLAG_AQ_SET_RSS_KEY) {
+ iavf_set_rss_key(adapter);
+ goto watchdog_done;
+ }
+ if (adapter->aq_required & IAVF_FLAG_AQ_SET_RSS_LUT) {
+ iavf_set_rss_lut(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_REQUEST_PROMISC) {
+ iavf_set_promiscuous(adapter, FLAG_VF_UNICAST_PROMISC |
+ FLAG_VF_MULTICAST_PROMISC);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_REQUEST_ALLMULTI) {
+ iavf_set_promiscuous(adapter, FLAG_VF_MULTICAST_PROMISC);
+ goto watchdog_done;
+ }
+
+ if ((adapter->aq_required & IAVF_FLAG_AQ_RELEASE_PROMISC) &&
+ (adapter->aq_required & IAVF_FLAG_AQ_RELEASE_ALLMULTI)) {
+ iavf_set_promiscuous(adapter, 0);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ENABLE_CHANNELS) {
+ iavf_enable_channels(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_CHANNELS) {
+ iavf_disable_channels(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_ADD_CLOUD_FILTER) {
+ iavf_add_cloud_filter(adapter);
+ goto watchdog_done;
+ }
+
+ if (adapter->aq_required & IAVF_FLAG_AQ_DEL_CLOUD_FILTER) {
+ iavf_del_cloud_filter(adapter);
+ goto watchdog_done;
+ }
+
+ schedule_delayed_work(&adapter->client_task, msecs_to_jiffies(5));
+
+ if (adapter->state == __IAVF_RUNNING)
+ iavf_request_stats(adapter);
+watchdog_done:
+ if (adapter->state == __IAVF_RUNNING)
+ iavf_detect_recover_hung(&adapter->vsi);
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+restart_watchdog:
+ if (adapter->state == __IAVF_REMOVE)
+ return;
+ if (adapter->aq_required)
+ mod_timer(&adapter->watchdog_timer,
+ jiffies + msecs_to_jiffies(20));
+ else
+ mod_timer(&adapter->watchdog_timer, jiffies + (HZ * 2));
+ schedule_work(&adapter->adminq_task);
+}
+
+static void iavf_disable_vf(struct iavf_adapter *adapter)
+{
+ struct iavf_mac_filter *f, *ftmp;
+ struct iavf_vlan_filter *fv, *fvtmp;
+ struct iavf_cloud_filter *cf, *cftmp;
+
+ adapter->flags |= IAVF_FLAG_PF_COMMS_FAILED;
+
+ /* We don't use netif_running() because it may be true prior to
+ * ndo_open() returning, so we can't assume it means all our open
+ * tasks have finished, since we're not holding the rtnl_lock here.
+ */
+ if (adapter->state == __IAVF_RUNNING) {
+ set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
+ netif_carrier_off(adapter->netdev);
+ netif_tx_disable(adapter->netdev);
+ adapter->link_up = false;
+ iavf_napi_disable_all(adapter);
+ iavf_irq_disable(adapter);
+ iavf_free_traffic_irqs(adapter);
+ iavf_free_all_tx_resources(adapter);
+ iavf_free_all_rx_resources(adapter);
+ }
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ /* Delete all of the filters */
+ list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
+ list_del(&f->list);
+ kfree(f);
+ }
+
+ list_for_each_entry_safe(fv, fvtmp, &adapter->vlan_filter_list, list) {
+ list_del(&fv->list);
+ kfree(fv);
+ }
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list, list) {
+ list_del(&cf->list);
+ kfree(cf);
+ adapter->num_cloud_filters--;
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+
+ iavf_free_misc_irq(adapter);
+ iavf_reset_interrupt_capability(adapter);
+ iavf_free_queues(adapter);
+ iavf_free_q_vectors(adapter);
+ kfree(adapter->vf_res);
+ iavf_shutdown_adminq(&adapter->hw);
+ adapter->netdev->flags &= ~IFF_UP;
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+ adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
+ adapter->state = __IAVF_DOWN;
+ wake_up(&adapter->down_waitqueue);
+ dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
+}
+
+#define IAVF_RESET_WAIT_MS 10
+#define IAVF_RESET_WAIT_COUNT 500
+/**
+ * iavf_reset_task - Call-back task to handle hardware reset
+ * @work: pointer to work_struct
+ *
+ * During reset we need to shut down and reinitialize the admin queue
+ * before we can use it to communicate with the PF again. We also clear
+ * and reinit the rings because that context is lost as well.
+ **/
+static void iavf_reset_task(struct work_struct *work)
+{
+ struct iavf_adapter *adapter = container_of(work,
+ struct iavf_adapter,
+ reset_task);
+ struct virtchnl_vf_resource *vfres = adapter->vf_res;
+ struct net_device *netdev = adapter->netdev;
+ struct iavf_hw *hw = &adapter->hw;
+ struct iavf_vlan_filter *vlf;
+ struct iavf_cloud_filter *cf;
+ struct iavf_mac_filter *f;
+ u32 reg_val;
+ int i = 0, err;
+ bool running;
+
+ /* When device is being removed it doesn't make sense to run the reset
+ * task, just return in such a case.
+ */
+ if (test_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section))
+ return;
+
+ while (test_and_set_bit(__IAVF_IN_CLIENT_TASK,
+ &adapter->crit_section))
+ usleep_range(500, 1000);
+ if (CLIENT_ENABLED(adapter)) {
+ adapter->flags &= ~(IAVF_FLAG_CLIENT_NEEDS_OPEN |
+ IAVF_FLAG_CLIENT_NEEDS_CLOSE |
+ IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS |
+ IAVF_FLAG_SERVICE_CLIENT_REQUESTED);
+ cancel_delayed_work_sync(&adapter->client_task);
+ iavf_notify_client_close(&adapter->vsi, true);
+ }
+ iavf_misc_irq_disable(adapter);
+ if (adapter->flags & IAVF_FLAG_RESET_NEEDED) {
+ adapter->flags &= ~IAVF_FLAG_RESET_NEEDED;
+ /* Restart the AQ here. If we have been reset but didn't
+ * detect it, or if the PF had to reinit, our AQ will be hosed.
+ */
+ iavf_shutdown_adminq(hw);
+ iavf_init_adminq(hw);
+ iavf_request_reset(adapter);
+ }
+ adapter->flags |= IAVF_FLAG_RESET_PENDING;
+
+ /* poll until we see the reset actually happen */
+ for (i = 0; i < IAVF_RESET_WAIT_COUNT; i++) {
+ reg_val = rd32(hw, IAVF_VF_ARQLEN1) &
+ IAVF_VF_ARQLEN1_ARQENABLE_MASK;
+ if (!reg_val)
+ break;
+ usleep_range(5000, 10000);
+ }
+ if (i == IAVF_RESET_WAIT_COUNT) {
+ dev_info(&adapter->pdev->dev, "Never saw reset\n");
+ goto continue_reset; /* act like the reset happened */
+ }
+
+ /* wait until the reset is complete and the PF is responding to us */
+ for (i = 0; i < IAVF_RESET_WAIT_COUNT; i++) {
+ /* sleep first to make sure a minimum wait time is met */
+ msleep(IAVF_RESET_WAIT_MS);
+
+ reg_val = rd32(hw, IAVF_VFGEN_RSTAT) &
+ IAVF_VFGEN_RSTAT_VFR_STATE_MASK;
+ if (reg_val == VIRTCHNL_VFR_VFACTIVE)
+ break;
+ }
+
+ pci_set_master(adapter->pdev);
+
+ if (i == IAVF_RESET_WAIT_COUNT) {
+ dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n",
+ reg_val);
+ iavf_disable_vf(adapter);
+ clear_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section);
+ return; /* Do not attempt to reinit. It's dead, Jim. */
+ }
+
+continue_reset:
+ /* We don't use netif_running() because it may be true prior to
+ * ndo_open() returning, so we can't assume it means all our open
+ * tasks have finished, since we're not holding the rtnl_lock here.
+ */
+ running = ((adapter->state == __IAVF_RUNNING) ||
+ (adapter->state == __IAVF_RESETTING));
+
+ if (running) {
+ netif_carrier_off(netdev);
+ netif_tx_stop_all_queues(netdev);
+ adapter->link_up = false;
+ iavf_napi_disable_all(adapter);
+ }
+ iavf_irq_disable(adapter);
+
+ adapter->state = __IAVF_RESETTING;
+ adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
+
+ /* free the Tx/Rx rings and descriptors, might be better to just
+ * re-use them sometime in the future
+ */
+ iavf_free_all_rx_resources(adapter);
+ iavf_free_all_tx_resources(adapter);
+
+ adapter->flags |= IAVF_FLAG_QUEUES_DISABLED;
+ /* kill and reinit the admin queue */
+ iavf_shutdown_adminq(hw);
+ adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+ err = iavf_init_adminq(hw);
+ if (err)
+ dev_info(&adapter->pdev->dev, "Failed to init adminq: %d\n",
+ err);
+ adapter->aq_required = 0;
+
+ if (adapter->flags & IAVF_FLAG_REINIT_ITR_NEEDED) {
+ err = iavf_reinit_interrupt_scheme(adapter);
+ if (err)
+ goto reset_err;
+ }
+
+ adapter->aq_required |= IAVF_FLAG_AQ_GET_CONFIG;
+ adapter->aq_required |= IAVF_FLAG_AQ_MAP_VECTORS;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ /* re-add all MAC filters */
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ f->add = true;
+ }
+ /* re-add all VLAN filters */
+ list_for_each_entry(vlf, &adapter->vlan_filter_list, list) {
+ vlf->add = true;
+ }
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ /* check if TCs are running and re-add all cloud filters */
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ if ((vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
+ adapter->num_tc) {
+ list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
+ cf->add = true;
+ }
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_MAC_FILTER;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_VLAN_FILTER;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_CLOUD_FILTER;
+ iavf_misc_irq_enable(adapter);
+
+ mod_timer(&adapter->watchdog_timer, jiffies + 2);
+
+ /* We were running when the reset started, so we need to restore some
+ * state here.
+ */
+ if (running) {
+ /* allocate transmit descriptors */
+ err = iavf_setup_all_tx_resources(adapter);
+ if (err)
+ goto reset_err;
+
+ /* allocate receive descriptors */
+ err = iavf_setup_all_rx_resources(adapter);
+ if (err)
+ goto reset_err;
+
+ if (adapter->flags & IAVF_FLAG_REINIT_ITR_NEEDED) {
+ err = iavf_request_traffic_irqs(adapter, netdev->name);
+ if (err)
+ goto reset_err;
+
+ adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
+ }
+
+ iavf_configure(adapter);
+
+ iavf_up_complete(adapter);
+
+ iavf_irq_enable(adapter, true);
+ } else {
+ adapter->state = __IAVF_DOWN;
+ wake_up(&adapter->down_waitqueue);
+ }
+ clear_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section);
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+
+ return;
+reset_err:
+ clear_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section);
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+ dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n");
+ iavf_close(netdev);
+}
+
+/**
+ * iavf_adminq_task - worker thread to clean the admin queue
+ * @work: pointer to work_struct containing our data
+ **/
+static void iavf_adminq_task(struct work_struct *work)
+{
+ struct iavf_adapter *adapter =
+ container_of(work, struct iavf_adapter, adminq_task);
+ struct iavf_hw *hw = &adapter->hw;
+ struct i40e_arq_event_info event;
+ enum virtchnl_ops v_op;
+ iavf_status ret, v_ret;
+ u32 val, oldval;
+ u16 pending;
+
+ if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
+ goto out;
+
+ event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
+ event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
+ if (!event.msg_buf)
+ goto out;
+
+ do {
+ ret = iavf_clean_arq_element(hw, &event, &pending);
+ v_op = (enum virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
+ v_ret = (iavf_status)le32_to_cpu(event.desc.cookie_low);
+
+ if (ret || !v_op)
+ break; /* No event to process or error cleaning ARQ */
+
+ iavf_virtchnl_completion(adapter, v_op, v_ret, event.msg_buf,
+ event.msg_len);
+ if (pending != 0)
+ memset(event.msg_buf, 0, IAVF_MAX_AQ_BUF_SIZE);
+ } while (pending);
+
+ if ((adapter->flags &
+ (IAVF_FLAG_RESET_PENDING | IAVF_FLAG_RESET_NEEDED)) ||
+ adapter->state == __IAVF_RESETTING)
+ goto freedom;
+
+ /* check for error indications */
+ val = rd32(hw, hw->aq.arq.len);
+ if (val == 0xdeadbeef) /* indicates device in reset */
+ goto freedom;
+ oldval = val;
+ if (val & IAVF_VF_ARQLEN1_ARQVFE_MASK) {
+ dev_info(&adapter->pdev->dev, "ARQ VF Error detected\n");
+ val &= ~IAVF_VF_ARQLEN1_ARQVFE_MASK;
+ }
+ if (val & IAVF_VF_ARQLEN1_ARQOVFL_MASK) {
+ dev_info(&adapter->pdev->dev, "ARQ Overflow Error detected\n");
+ val &= ~IAVF_VF_ARQLEN1_ARQOVFL_MASK;
+ }
+ if (val & IAVF_VF_ARQLEN1_ARQCRIT_MASK) {
+ dev_info(&adapter->pdev->dev, "ARQ Critical Error detected\n");
+ val &= ~IAVF_VF_ARQLEN1_ARQCRIT_MASK;
+ }
+ if (oldval != val)
+ wr32(hw, hw->aq.arq.len, val);
+
+ val = rd32(hw, hw->aq.asq.len);
+ oldval = val;
+ if (val & IAVF_VF_ATQLEN1_ATQVFE_MASK) {
+ dev_info(&adapter->pdev->dev, "ASQ VF Error detected\n");
+ val &= ~IAVF_VF_ATQLEN1_ATQVFE_MASK;
+ }
+ if (val & IAVF_VF_ATQLEN1_ATQOVFL_MASK) {
+ dev_info(&adapter->pdev->dev, "ASQ Overflow Error detected\n");
+ val &= ~IAVF_VF_ATQLEN1_ATQOVFL_MASK;
+ }
+ if (val & IAVF_VF_ATQLEN1_ATQCRIT_MASK) {
+ dev_info(&adapter->pdev->dev, "ASQ Critical Error detected\n");
+ val &= ~IAVF_VF_ATQLEN1_ATQCRIT_MASK;
+ }
+ if (oldval != val)
+ wr32(hw, hw->aq.asq.len, val);
+
+freedom:
+ kfree(event.msg_buf);
+out:
+ /* re-enable Admin queue interrupt cause */
+ iavf_misc_irq_enable(adapter);
+}
+
+/**
+ * iavf_client_task - worker thread to perform client work
+ * @work: pointer to work_struct containing our data
+ *
+ * This task handles client interactions. Because client calls can be
+ * reentrant, we can't handle them in the watchdog.
+ **/
+static void iavf_client_task(struct work_struct *work)
+{
+ struct iavf_adapter *adapter =
+ container_of(work, struct iavf_adapter, client_task.work);
+
+ /* If we can't get the client bit, just give up. We'll be rescheduled
+ * later.
+ */
+
+ if (test_and_set_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section))
+ return;
+
+ if (adapter->flags & IAVF_FLAG_SERVICE_CLIENT_REQUESTED) {
+ iavf_client_subtask(adapter);
+ adapter->flags &= ~IAVF_FLAG_SERVICE_CLIENT_REQUESTED;
+ goto out;
+ }
+ if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS) {
+ iavf_notify_client_l2_params(&adapter->vsi);
+ adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS;
+ goto out;
+ }
+ if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_CLOSE) {
+ iavf_notify_client_close(&adapter->vsi, false);
+ adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_CLOSE;
+ goto out;
+ }
+ if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_OPEN) {
+ iavf_notify_client_open(&adapter->vsi);
+ adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_OPEN;
+ }
+out:
+ clear_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section);
+}
+
+/**
+ * iavf_free_all_tx_resources - Free Tx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
+void iavf_free_all_tx_resources(struct iavf_adapter *adapter)
+{
+ int i;
+
+ if (!adapter->tx_rings)
+ return;
+
+ for (i = 0; i < adapter->num_active_queues; i++)
+ if (adapter->tx_rings[i].desc)
+ iavf_free_tx_resources(&adapter->tx_rings[i]);
+}
+
+/**
+ * iavf_setup_all_tx_resources - allocate all queues Tx resources
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int iavf_setup_all_tx_resources(struct iavf_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_active_queues; i++) {
+ adapter->tx_rings[i].count = adapter->tx_desc_count;
+ err = iavf_setup_tx_descriptors(&adapter->tx_rings[i]);
+ if (!err)
+ continue;
+ dev_err(&adapter->pdev->dev,
+ "Allocation for Tx Queue %u failed\n", i);
+ break;
+ }
+
+ return err;
+}
+
+/**
+ * iavf_setup_all_rx_resources - allocate all queues Rx resources
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int iavf_setup_all_rx_resources(struct iavf_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_active_queues; i++) {
+ adapter->rx_rings[i].count = adapter->rx_desc_count;
+ err = iavf_setup_rx_descriptors(&adapter->rx_rings[i]);
+ if (!err)
+ continue;
+ dev_err(&adapter->pdev->dev,
+ "Allocation for Rx Queue %u failed\n", i);
+ break;
+ }
+ return err;
+}
+
+/**
+ * iavf_free_all_rx_resources - Free Rx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+void iavf_free_all_rx_resources(struct iavf_adapter *adapter)
+{
+ int i;
+
+ if (!adapter->rx_rings)
+ return;
+
+ for (i = 0; i < adapter->num_active_queues; i++)
+ if (adapter->rx_rings[i].desc)
+ iavf_free_rx_resources(&adapter->rx_rings[i]);
+}
+
+/**
+ * iavf_validate_tx_bandwidth - validate the max Tx bandwidth
+ * @adapter: board private structure
+ * @max_tx_rate: max Tx bw for a tc
+ **/
+static int iavf_validate_tx_bandwidth(struct iavf_adapter *adapter,
+ u64 max_tx_rate)
+{
+ int speed = 0, ret = 0;
+
+ switch (adapter->link_speed) {
+ case I40E_LINK_SPEED_40GB:
+ speed = 40000;
+ break;
+ case I40E_LINK_SPEED_25GB:
+ speed = 25000;
+ break;
+ case I40E_LINK_SPEED_20GB:
+ speed = 20000;
+ break;
+ case I40E_LINK_SPEED_10GB:
+ speed = 10000;
+ break;
+ case I40E_LINK_SPEED_1GB:
+ speed = 1000;
+ break;
+ case I40E_LINK_SPEED_100MB:
+ speed = 100;
+ break;
+ default:
+ break;
+ }
+
+ if (max_tx_rate > speed) {
+ dev_err(&adapter->pdev->dev,
+ "Invalid tx rate specified\n");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/**
+ * iavf_validate_channel_config - validate queue mapping info
+ * @adapter: board private structure
+ * @mqprio_qopt: queue parameters
+ *
+ * This function validates if the config provided by the user to
+ * configure queue channels is valid or not. Returns 0 on a valid
+ * config.
+ **/
+static int iavf_validate_ch_config(struct iavf_adapter *adapter,
+ struct tc_mqprio_qopt_offload *mqprio_qopt)
+{
+ u64 total_max_rate = 0;
+ int i, num_qps = 0;
+ u64 tx_rate = 0;
+ int ret = 0;
+
+ if (mqprio_qopt->qopt.num_tc > IAVF_MAX_TRAFFIC_CLASS ||
+ mqprio_qopt->qopt.num_tc < 1)
+ return -EINVAL;
+
+ for (i = 0; i <= mqprio_qopt->qopt.num_tc - 1; i++) {
+ if (!mqprio_qopt->qopt.count[i] ||
+ mqprio_qopt->qopt.offset[i] != num_qps)
+ return -EINVAL;
+ if (mqprio_qopt->min_rate[i]) {
+ dev_err(&adapter->pdev->dev,
+ "Invalid min tx rate (greater than 0) specified\n");
+ return -EINVAL;
+ }
+ /*convert to Mbps */
+ tx_rate = div_u64(mqprio_qopt->max_rate[i],
+ IAVF_MBPS_DIVISOR);
+ total_max_rate += tx_rate;
+ num_qps += mqprio_qopt->qopt.count[i];
+ }
+ if (num_qps > IAVF_MAX_REQ_QUEUES)
+ return -EINVAL;
+
+ ret = iavf_validate_tx_bandwidth(adapter, total_max_rate);
+ return ret;
+}
+
+/**
+ * iavf_del_all_cloud_filters - delete all cloud filters
+ * on the traffic classes
+ **/
+static void iavf_del_all_cloud_filters(struct iavf_adapter *adapter)
+{
+ struct iavf_cloud_filter *cf, *cftmp;
+
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list,
+ list) {
+ list_del(&cf->list);
+ kfree(cf);
+ adapter->num_cloud_filters--;
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+}
+
+/**
+ * __iavf_setup_tc - configure multiple traffic classes
+ * @netdev: network interface device structure
+ * @type_date: tc offload data
+ *
+ * This function processes the config information provided by the
+ * user to configure traffic classes/queue channels and packages the
+ * information to request the PF to setup traffic classes.
+ *
+ * Returns 0 on success.
+ **/
+static int __iavf_setup_tc(struct net_device *netdev, void *type_data)
+{
+ struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct virtchnl_vf_resource *vfres = adapter->vf_res;
+ u8 num_tc = 0, total_qps = 0;
+ int ret = 0, netdev_tc = 0;
+ u64 max_tx_rate;
+ u16 mode;
+ int i;
+
+ num_tc = mqprio_qopt->qopt.num_tc;
+ mode = mqprio_qopt->mode;
+
+ /* delete queue_channel */
+ if (!mqprio_qopt->qopt.hw) {
+ if (adapter->ch_config.state == __IAVF_TC_RUNNING) {
+ /* reset the tc configuration */
+ netdev_reset_tc(netdev);
+ adapter->num_tc = 0;
+ netif_tx_stop_all_queues(netdev);
+ netif_tx_disable(netdev);
+ iavf_del_all_cloud_filters(adapter);
+ adapter->aq_required = IAVF_FLAG_AQ_DISABLE_CHANNELS;
+ goto exit;
+ } else {
+ return -EINVAL;
+ }
+ }
+
+ /* add queue channel */
+ if (mode == TC_MQPRIO_MODE_CHANNEL) {
+ if (!(vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ)) {
+ dev_err(&adapter->pdev->dev, "ADq not supported\n");
+ return -EOPNOTSUPP;
+ }
+ if (adapter->ch_config.state != __IAVF_TC_INVALID) {
+ dev_err(&adapter->pdev->dev, "TC configuration already exists\n");
+ return -EINVAL;
+ }
+
+ ret = iavf_validate_ch_config(adapter, mqprio_qopt);
+ if (ret)
+ return ret;
+ /* Return if same TC config is requested */
+ if (adapter->num_tc == num_tc)
+ return 0;
+ adapter->num_tc = num_tc;
+
+ for (i = 0; i < IAVF_MAX_TRAFFIC_CLASS; i++) {
+ if (i < num_tc) {
+ adapter->ch_config.ch_info[i].count =
+ mqprio_qopt->qopt.count[i];
+ adapter->ch_config.ch_info[i].offset =
+ mqprio_qopt->qopt.offset[i];
+ total_qps += mqprio_qopt->qopt.count[i];
+ max_tx_rate = mqprio_qopt->max_rate[i];
+ /* convert to Mbps */
+ max_tx_rate = div_u64(max_tx_rate,
+ IAVF_MBPS_DIVISOR);
+ adapter->ch_config.ch_info[i].max_tx_rate =
+ max_tx_rate;
+ } else {
+ adapter->ch_config.ch_info[i].count = 1;
+ adapter->ch_config.ch_info[i].offset = 0;
+ }
+ }
+ adapter->ch_config.total_qps = total_qps;
+ netif_tx_stop_all_queues(netdev);
+ netif_tx_disable(netdev);
+ adapter->aq_required |= IAVF_FLAG_AQ_ENABLE_CHANNELS;
+ netdev_reset_tc(netdev);
+ /* Report the tc mapping up the stack */
+ netdev_set_num_tc(adapter->netdev, num_tc);
+ for (i = 0; i < IAVF_MAX_TRAFFIC_CLASS; i++) {
+ u16 qcount = mqprio_qopt->qopt.count[i];
+ u16 qoffset = mqprio_qopt->qopt.offset[i];
+
+ if (i < num_tc)
+ netdev_set_tc_queue(netdev, netdev_tc++, qcount,
+ qoffset);
+ }
+ }
+exit:
+ return ret;
+}
+
+/**
+ * iavf_parse_cls_flower - Parse tc flower filters provided by kernel
+ * @adapter: board private structure
+ * @cls_flower: pointer to struct tc_cls_flower_offload
+ * @filter: pointer to cloud filter structure
+ */
+static int iavf_parse_cls_flower(struct iavf_adapter *adapter,
+ struct tc_cls_flower_offload *f,
+ struct iavf_cloud_filter *filter)
+{
+ u16 n_proto_mask = 0;
+ u16 n_proto_key = 0;
+ u8 field_flags = 0;
+ u16 addr_type = 0;
+ u16 n_proto = 0;
+ int i = 0;
+ struct virtchnl_filter *vf = &filter->f;
+
+ if (f->dissector->used_keys &
+ ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_VLAN) |
+ BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_PORTS) |
+ BIT(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
+ dev_err(&adapter->pdev->dev, "Unsupported key used: 0x%x\n",
+ f->dissector->used_keys);
+ return -EOPNOTSUPP;
+ }
+
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
+ struct flow_dissector_key_keyid *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_ENC_KEYID,
+ f->mask);
+
+ if (mask->keyid != 0)
+ field_flags |= IAVF_CLOUD_FIELD_TEN_ID;
+ }
+
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
+ struct flow_dissector_key_basic *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ f->key);
+
+ struct flow_dissector_key_basic *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ f->mask);
+ n_proto_key = ntohs(key->n_proto);
+ n_proto_mask = ntohs(mask->n_proto);
+
+ if (n_proto_key == ETH_P_ALL) {
+ n_proto_key = 0;
+ n_proto_mask = 0;
+ }
+ n_proto = n_proto_key & n_proto_mask;
+ if (n_proto != ETH_P_IP && n_proto != ETH_P_IPV6)
+ return -EINVAL;
+ if (n_proto == ETH_P_IPV6) {
+ /* specify flow type as TCP IPv6 */
+ vf->flow_type = VIRTCHNL_TCP_V6_FLOW;
+ }
+
+ if (key->ip_proto != IPPROTO_TCP) {
+ dev_info(&adapter->pdev->dev, "Only TCP transport is supported\n");
+ return -EINVAL;
+ }
+ }
+
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
+ struct flow_dissector_key_eth_addrs *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_ETH_ADDRS,
+ f->key);
+
+ struct flow_dissector_key_eth_addrs *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_ETH_ADDRS,
+ f->mask);
+ /* use is_broadcast and is_zero to check for all 0xf or 0 */
+ if (!is_zero_ether_addr(mask->dst)) {
+ if (is_broadcast_ether_addr(mask->dst)) {
+ field_flags |= IAVF_CLOUD_FIELD_OMAC;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad ether dest mask %pM\n",
+ mask->dst);
+ return I40E_ERR_CONFIG;
+ }
+ }
+
+ if (!is_zero_ether_addr(mask->src)) {
+ if (is_broadcast_ether_addr(mask->src)) {
+ field_flags |= IAVF_CLOUD_FIELD_IMAC;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad ether src mask %pM\n",
+ mask->src);
+ return I40E_ERR_CONFIG;
+ }
+ }
+
+ if (!is_zero_ether_addr(key->dst))
+ if (is_valid_ether_addr(key->dst) ||
+ is_multicast_ether_addr(key->dst)) {
+ /* set the mask if a valid dst_mac address */
+ for (i = 0; i < ETH_ALEN; i++)
+ vf->mask.tcp_spec.dst_mac[i] |= 0xff;
+ ether_addr_copy(vf->data.tcp_spec.dst_mac,
+ key->dst);
+ }
+
+ if (!is_zero_ether_addr(key->src))
+ if (is_valid_ether_addr(key->src) ||
+ is_multicast_ether_addr(key->src)) {
+ /* set the mask if a valid dst_mac address */
+ for (i = 0; i < ETH_ALEN; i++)
+ vf->mask.tcp_spec.src_mac[i] |= 0xff;
+ ether_addr_copy(vf->data.tcp_spec.src_mac,
+ key->src);
+ }
+ }
+
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) {
+ struct flow_dissector_key_vlan *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_VLAN,
+ f->key);
+ struct flow_dissector_key_vlan *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_VLAN,
+ f->mask);
+
+ if (mask->vlan_id) {
+ if (mask->vlan_id == VLAN_VID_MASK) {
+ field_flags |= IAVF_CLOUD_FIELD_IVLAN;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad vlan mask %u\n",
+ mask->vlan_id);
+ return I40E_ERR_CONFIG;
+ }
+ }
+ vf->mask.tcp_spec.vlan_id |= cpu_to_be16(0xffff);
+ vf->data.tcp_spec.vlan_id = cpu_to_be16(key->vlan_id);
+ }
+
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
+ struct flow_dissector_key_control *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_CONTROL,
+ f->key);
+
+ addr_type = key->addr_type;
+ }
+
+ if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
+ struct flow_dissector_key_ipv4_addrs *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV4_ADDRS,
+ f->key);
+ struct flow_dissector_key_ipv4_addrs *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV4_ADDRS,
+ f->mask);
+
+ if (mask->dst) {
+ if (mask->dst == cpu_to_be32(0xffffffff)) {
+ field_flags |= IAVF_CLOUD_FIELD_IIP;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad ip dst mask 0x%08x\n",
+ be32_to_cpu(mask->dst));
+ return I40E_ERR_CONFIG;
+ }
+ }
+
+ if (mask->src) {
+ if (mask->src == cpu_to_be32(0xffffffff)) {
+ field_flags |= IAVF_CLOUD_FIELD_IIP;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad ip src mask 0x%08x\n",
+ be32_to_cpu(mask->dst));
+ return I40E_ERR_CONFIG;
+ }
+ }
+
+ if (field_flags & IAVF_CLOUD_FIELD_TEN_ID) {
+ dev_info(&adapter->pdev->dev, "Tenant id not allowed for ip filter\n");
+ return I40E_ERR_CONFIG;
+ }
+ if (key->dst) {
+ vf->mask.tcp_spec.dst_ip[0] |= cpu_to_be32(0xffffffff);
+ vf->data.tcp_spec.dst_ip[0] = key->dst;
+ }
+ if (key->src) {
+ vf->mask.tcp_spec.src_ip[0] |= cpu_to_be32(0xffffffff);
+ vf->data.tcp_spec.src_ip[0] = key->src;
+ }
+ }
+
+ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
+ struct flow_dissector_key_ipv6_addrs *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV6_ADDRS,
+ f->key);
+ struct flow_dissector_key_ipv6_addrs *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_IPV6_ADDRS,
+ f->mask);
+
+ /* validate mask, make sure it is not IPV6_ADDR_ANY */
+ if (ipv6_addr_any(&mask->dst)) {
+ dev_err(&adapter->pdev->dev, "Bad ipv6 dst mask 0x%02x\n",
+ IPV6_ADDR_ANY);
+ return I40E_ERR_CONFIG;
+ }
+
+ /* src and dest IPv6 address should not be LOOPBACK
+ * (0:0:0:0:0:0:0:1) which can be represented as ::1
+ */
+ if (ipv6_addr_loopback(&key->dst) ||
+ ipv6_addr_loopback(&key->src)) {
+ dev_err(&adapter->pdev->dev,
+ "ipv6 addr should not be loopback\n");
+ return I40E_ERR_CONFIG;
+ }
+ if (!ipv6_addr_any(&mask->dst) || !ipv6_addr_any(&mask->src))
+ field_flags |= IAVF_CLOUD_FIELD_IIP;
+
+ for (i = 0; i < 4; i++)
+ vf->mask.tcp_spec.dst_ip[i] |= cpu_to_be32(0xffffffff);
+ memcpy(&vf->data.tcp_spec.dst_ip, &key->dst.s6_addr32,
+ sizeof(vf->data.tcp_spec.dst_ip));
+ for (i = 0; i < 4; i++)
+ vf->mask.tcp_spec.src_ip[i] |= cpu_to_be32(0xffffffff);
+ memcpy(&vf->data.tcp_spec.src_ip, &key->src.s6_addr32,
+ sizeof(vf->data.tcp_spec.src_ip));
+ }
+ if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_dissector_key_ports *key =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_PORTS,
+ f->key);
+ struct flow_dissector_key_ports *mask =
+ skb_flow_dissector_target(f->dissector,
+ FLOW_DISSECTOR_KEY_PORTS,
+ f->mask);
+
+ if (mask->src) {
+ if (mask->src == cpu_to_be16(0xffff)) {
+ field_flags |= IAVF_CLOUD_FIELD_IIP;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad src port mask %u\n",
+ be16_to_cpu(mask->src));
+ return I40E_ERR_CONFIG;
+ }
+ }
+
+ if (mask->dst) {
+ if (mask->dst == cpu_to_be16(0xffff)) {
+ field_flags |= IAVF_CLOUD_FIELD_IIP;
+ } else {
+ dev_err(&adapter->pdev->dev, "Bad dst port mask %u\n",
+ be16_to_cpu(mask->dst));
+ return I40E_ERR_CONFIG;
+ }
+ }
+ if (key->dst) {
+ vf->mask.tcp_spec.dst_port |= cpu_to_be16(0xffff);
+ vf->data.tcp_spec.dst_port = key->dst;
+ }
+
+ if (key->src) {
+ vf->mask.tcp_spec.src_port |= cpu_to_be16(0xffff);
+ vf->data.tcp_spec.src_port = key->src;
+ }
+ }
+ vf->field_flags = field_flags;
+
+ return 0;
+}
+
+/**
+ * iavf_handle_tclass - Forward to a traffic class on the device
+ * @adapter: board private structure
+ * @tc: traffic class index on the device
+ * @filter: pointer to cloud filter structure
+ */
+static int iavf_handle_tclass(struct iavf_adapter *adapter, u32 tc,
+ struct iavf_cloud_filter *filter)
+{
+ if (tc == 0)
+ return 0;
+ if (tc < adapter->num_tc) {
+ if (!filter->f.data.tcp_spec.dst_port) {
+ dev_err(&adapter->pdev->dev,
+ "Specify destination port to redirect to traffic class other than TC0\n");
+ return -EINVAL;
+ }
+ }
+ /* redirect to a traffic class on the same device */
+ filter->f.action = VIRTCHNL_ACTION_TC_REDIRECT;
+ filter->f.action_meta = tc;
+ return 0;
+}
+
+/**
+ * iavf_configure_clsflower - Add tc flower filters
+ * @adapter: board private structure
+ * @cls_flower: Pointer to struct tc_cls_flower_offload
+ */
+static int iavf_configure_clsflower(struct iavf_adapter *adapter,
+ struct tc_cls_flower_offload *cls_flower)
+{
+ int tc = tc_classid_to_hwtc(adapter->netdev, cls_flower->classid);
+ struct iavf_cloud_filter *filter = NULL;
+ int err = -EINVAL, count = 50;
+
+ if (tc < 0) {
+ dev_err(&adapter->pdev->dev, "Invalid traffic class\n");
+ return -EINVAL;
+ }
+
+ filter = kzalloc(sizeof(*filter), GFP_KERNEL);
+ if (!filter)
+ return -ENOMEM;
+
+ while (test_and_set_bit(__IAVF_IN_CRITICAL_TASK,
+ &adapter->crit_section)) {
+ if (--count == 0)
+ goto err;
+ udelay(1);
+ }
+
+ filter->cookie = cls_flower->cookie;
+
+ /* set the mask to all zeroes to begin with */
+ memset(&filter->f.mask.tcp_spec, 0, sizeof(struct virtchnl_l4_spec));
+ /* start out with flow type and eth type IPv4 to begin with */
+ filter->f.flow_type = VIRTCHNL_TCP_V4_FLOW;
+ err = iavf_parse_cls_flower(adapter, cls_flower, filter);
+ if (err < 0)
+ goto err;
+
+ err = iavf_handle_tclass(adapter, tc, filter);
+ if (err < 0)
+ goto err;
+
+ /* add filter to the list */
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ list_add_tail(&filter->list, &adapter->cloud_filter_list);
+ adapter->num_cloud_filters++;
+ filter->add = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_CLOUD_FILTER;
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+err:
+ if (err)
+ kfree(filter);
+
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+ return err;
+}
+
+/* iavf_find_cf - Find the cloud filter in the list
+ * @adapter: Board private structure
+ * @cookie: filter specific cookie
+ *
+ * Returns ptr to the filter object or NULL. Must be called while holding the
+ * cloud_filter_list_lock.
+ */
+static struct iavf_cloud_filter *iavf_find_cf(struct iavf_adapter *adapter,
+ unsigned long *cookie)
+{
+ struct iavf_cloud_filter *filter = NULL;
+
+ if (!cookie)
+ return NULL;
+
+ list_for_each_entry(filter, &adapter->cloud_filter_list, list) {
+ if (!memcmp(cookie, &filter->cookie, sizeof(filter->cookie)))
+ return filter;
+ }
+ return NULL;
+}
+
+/**
+ * iavf_delete_clsflower - Remove tc flower filters
+ * @adapter: board private structure
+ * @cls_flower: Pointer to struct tc_cls_flower_offload
+ */
+static int iavf_delete_clsflower(struct iavf_adapter *adapter,
+ struct tc_cls_flower_offload *cls_flower)
+{
+ struct iavf_cloud_filter *filter = NULL;
+ int err = 0;
+
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ filter = iavf_find_cf(adapter, &cls_flower->cookie);
+ if (filter) {
+ filter->del = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
+ } else {
+ err = -EINVAL;
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+
+ return err;
+}
+
+/**
+ * iavf_setup_tc_cls_flower - flower classifier offloads
+ * @netdev: net device to configure
+ * @type_data: offload data
+ */
+static int iavf_setup_tc_cls_flower(struct iavf_adapter *adapter,
+ struct tc_cls_flower_offload *cls_flower)
+{
+ if (cls_flower->common.chain_index)
+ return -EOPNOTSUPP;
+
+ switch (cls_flower->command) {
+ case TC_CLSFLOWER_REPLACE:
+ return iavf_configure_clsflower(adapter, cls_flower);
+ case TC_CLSFLOWER_DESTROY:
+ return iavf_delete_clsflower(adapter, cls_flower);
+ case TC_CLSFLOWER_STATS:
+ return -EOPNOTSUPP;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/**
+ * iavf_setup_tc_block_cb - block callback for tc
+ * @type: type of offload
+ * @type_data: offload data
+ * @cb_priv:
+ *
+ * This function is the block callback for traffic classes
+ **/
+static int iavf_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
+ void *cb_priv)
+{
+ switch (type) {
+ case TC_SETUP_CLSFLOWER:
+ return iavf_setup_tc_cls_flower(cb_priv, type_data);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/**
+ * iavf_setup_tc_block - register callbacks for tc
+ * @netdev: network interface device structure
+ * @f: tc offload data
+ *
+ * This function registers block callbacks for tc
+ * offloads
+ **/
+static int iavf_setup_tc_block(struct net_device *dev,
+ struct tc_block_offload *f)
+{
+ struct iavf_adapter *adapter = netdev_priv(dev);
+
+ if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
+ return -EOPNOTSUPP;
+
+ switch (f->command) {
+ case TC_BLOCK_BIND:
+ return tcf_block_cb_register(f->block, iavf_setup_tc_block_cb,
+ adapter, adapter, f->extack);
+ case TC_BLOCK_UNBIND:
+ tcf_block_cb_unregister(f->block, iavf_setup_tc_block_cb,
+ adapter);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/**
+ * iavf_setup_tc - configure multiple traffic classes
+ * @netdev: network interface device structure
+ * @type: type of offload
+ * @type_date: tc offload data
+ *
+ * This function is the callback to ndo_setup_tc in the
+ * netdev_ops.
+ *
+ * Returns 0 on success
+ **/
+static int iavf_setup_tc(struct net_device *netdev, enum tc_setup_type type,
+ void *type_data)
+{
+ switch (type) {
+ case TC_SETUP_QDISC_MQPRIO:
+ return __iavf_setup_tc(netdev, type_data);
+ case TC_SETUP_BLOCK:
+ return iavf_setup_tc_block(netdev, type_data);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/**
+ * iavf_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP). At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ **/
+static int iavf_open(struct net_device *netdev)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ int err;
+
+ if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED) {
+ dev_err(&adapter->pdev->dev, "Unable to open device due to PF driver failure.\n");
+ return -EIO;
+ }
+
+ while (test_and_set_bit(__IAVF_IN_CRITICAL_TASK,
+ &adapter->crit_section))
+ usleep_range(500, 1000);
+
+ if (adapter->state != __IAVF_DOWN) {
+ err = -EBUSY;
+ goto err_unlock;
+ }
+
+ /* allocate transmit descriptors */
+ err = iavf_setup_all_tx_resources(adapter);
+ if (err)
+ goto err_setup_tx;
+
+ /* allocate receive descriptors */
+ err = iavf_setup_all_rx_resources(adapter);
+ if (err)
+ goto err_setup_rx;
+
+ /* clear any pending interrupts, may auto mask */
+ err = iavf_request_traffic_irqs(adapter, netdev->name);
+ if (err)
+ goto err_req_irq;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ iavf_add_filter(adapter, adapter->hw.mac.addr);
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ iavf_configure(adapter);
+
+ iavf_up_complete(adapter);
+
+ iavf_irq_enable(adapter, true);
+
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+
+ return 0;
+
+err_req_irq:
+ iavf_down(adapter);
+ iavf_free_traffic_irqs(adapter);
+err_setup_rx:
+ iavf_free_all_rx_resources(adapter);
+err_setup_tx:
+ iavf_free_all_tx_resources(adapter);
+err_unlock:
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+
+ return err;
+}
+
+/**
+ * iavf_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS. The hardware is still under the drivers control, but
+ * needs to be disabled. All IRQs except vector 0 (reserved for admin queue)
+ * are freed, along with all transmit and receive resources.
+ **/
+static int iavf_close(struct net_device *netdev)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ int status;
+
+ if (adapter->state <= __IAVF_DOWN_PENDING)
+ return 0;
+
+ while (test_and_set_bit(__IAVF_IN_CRITICAL_TASK,
+ &adapter->crit_section))
+ usleep_range(500, 1000);
+
+ set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
+ if (CLIENT_ENABLED(adapter))
+ adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_CLOSE;
+
+ iavf_down(adapter);
+ adapter->state = __IAVF_DOWN_PENDING;
+ iavf_free_traffic_irqs(adapter);
+
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+
+ /* We explicitly don't free resources here because the hardware is
+ * still active and can DMA into memory. Resources are cleared in
+ * iavf_virtchnl_completion() after we get confirmation from the PF
+ * driver that the rings have been stopped.
+ *
+ * Also, we wait for state to transition to __IAVF_DOWN before
+ * returning. State change occurs in iavf_virtchnl_completion() after
+ * VF resources are released (which occurs after PF driver processes and
+ * responds to admin queue commands).
+ */
+
+ status = wait_event_timeout(adapter->down_waitqueue,
+ adapter->state == __IAVF_DOWN,
+ msecs_to_jiffies(200));
+ if (!status)
+ netdev_warn(netdev, "Device resources not yet released\n");
+ return 0;
+}
+
+/**
+ * iavf_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int iavf_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ netdev->mtu = new_mtu;
+ if (CLIENT_ENABLED(adapter)) {
+ iavf_notify_client_l2_params(&adapter->vsi);
+ adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED;
+ }
+ adapter->flags |= IAVF_FLAG_RESET_NEEDED;
+ schedule_work(&adapter->reset_task);
+
+ return 0;
+}
+
+/**
+ * iavf_set_features - set the netdev feature flags
+ * @netdev: ptr to the netdev being adjusted
+ * @features: the feature set that the stack is suggesting
+ * Note: expects to be called while under rtnl_lock()
+ **/
+static int iavf_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ /* Don't allow changing VLAN_RX flag when adapter is not capable
+ * of VLAN offload
+ */
+ if (!VLAN_ALLOWED(adapter)) {
+ if ((netdev->features ^ features) & NETIF_F_HW_VLAN_CTAG_RX)
+ return -EINVAL;
+ } else if ((netdev->features ^ features) & NETIF_F_HW_VLAN_CTAG_RX) {
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ adapter->aq_required |=
+ IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING;
+ else
+ adapter->aq_required |=
+ IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING;
+ }
+
+ return 0;
+}
+
+/**
+ * iavf_features_check - Validate encapsulated packet conforms to limits
+ * @skb: skb buff
+ * @dev: This physical port's netdev
+ * @features: Offload features that the stack believes apply
+ **/
+static netdev_features_t iavf_features_check(struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features)
+{
+ size_t len;
+
+ /* No point in doing any of this if neither checksum nor GSO are
+ * being requested for this frame. We can rule out both by just
+ * checking for CHECKSUM_PARTIAL
+ */
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return features;
+
+ /* We cannot support GSO if the MSS is going to be less than
+ * 64 bytes. If it is then we need to drop support for GSO.
+ */
+ if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64))
+ features &= ~NETIF_F_GSO_MASK;
+
+ /* MACLEN can support at most 63 words */
+ len = skb_network_header(skb) - skb->data;
+ if (len & ~(63 * 2))
+ goto out_err;
+
+ /* IPLEN and EIPLEN can support at most 127 dwords */
+ len = skb_transport_header(skb) - skb_network_header(skb);
+ if (len & ~(127 * 4))
+ goto out_err;
+
+ if (skb->encapsulation) {
+ /* L4TUNLEN can support 127 words */
+ len = skb_inner_network_header(skb) - skb_transport_header(skb);
+ if (len & ~(127 * 2))
+ goto out_err;
+
+ /* IPLEN can support at most 127 dwords */
+ len = skb_inner_transport_header(skb) -
+ skb_inner_network_header(skb);
+ if (len & ~(127 * 4))
+ goto out_err;
+ }
+
+ /* No need to validate L4LEN as TCP is the only protocol with a
+ * a flexible value and we support all possible values supported
+ * by TCP, which is at most 15 dwords
+ */
+
+ return features;
+out_err:
+ return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
+}
+
+/**
+ * iavf_fix_features - fix up the netdev feature bits
+ * @netdev: our net device
+ * @features: desired feature bits
+ *
+ * Returns fixed-up features bits
+ **/
+static netdev_features_t iavf_fix_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ if (!(adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN))
+ features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_FILTER);
+
+ return features;
+}
+
+static const struct net_device_ops iavf_netdev_ops = {
+ .ndo_open = iavf_open,
+ .ndo_stop = iavf_close,
+ .ndo_start_xmit = iavf_xmit_frame,
+ .ndo_set_rx_mode = iavf_set_rx_mode,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = iavf_set_mac,
+ .ndo_change_mtu = iavf_change_mtu,
+ .ndo_tx_timeout = iavf_tx_timeout,
+ .ndo_vlan_rx_add_vid = iavf_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = iavf_vlan_rx_kill_vid,
+ .ndo_features_check = iavf_features_check,
+ .ndo_fix_features = iavf_fix_features,
+ .ndo_set_features = iavf_set_features,
+ .ndo_setup_tc = iavf_setup_tc,
+};
+
+/**
+ * iavf_check_reset_complete - check that VF reset is complete
+ * @hw: pointer to hw struct
+ *
+ * Returns 0 if device is ready to use, or -EBUSY if it's in reset.
+ **/
+static int iavf_check_reset_complete(struct iavf_hw *hw)
+{
+ u32 rstat;
+ int i;
+
+ for (i = 0; i < 100; i++) {
+ rstat = rd32(hw, IAVF_VFGEN_RSTAT) &
+ IAVF_VFGEN_RSTAT_VFR_STATE_MASK;
+ if ((rstat == VIRTCHNL_VFR_VFACTIVE) ||
+ (rstat == VIRTCHNL_VFR_COMPLETED))
+ return 0;
+ usleep_range(10, 20);
+ }
+ return -EBUSY;
+}
+
+/**
+ * iavf_process_config - Process the config information we got from the PF
+ * @adapter: board private structure
+ *
+ * Verify that we have a valid config struct, and set up our netdev features
+ * and our VSI struct.
+ **/
+int iavf_process_config(struct iavf_adapter *adapter)
+{
+ struct virtchnl_vf_resource *vfres = adapter->vf_res;
+ int i, num_req_queues = adapter->num_req_queues;
+ struct net_device *netdev = adapter->netdev;
+ struct iavf_vsi *vsi = &adapter->vsi;
+ netdev_features_t hw_enc_features;
+ netdev_features_t hw_features;
+
+ /* got VF config message back from PF, now we can parse it */
+ for (i = 0; i < vfres->num_vsis; i++) {
+ if (vfres->vsi_res[i].vsi_type == VIRTCHNL_VSI_SRIOV)
+ adapter->vsi_res = &vfres->vsi_res[i];
+ }
+ if (!adapter->vsi_res) {
+ dev_err(&adapter->pdev->dev, "No LAN VSI found\n");
+ return -ENODEV;
+ }
+
+ if (num_req_queues &&
+ num_req_queues != adapter->vsi_res->num_queue_pairs) {
+ /* Problem. The PF gave us fewer queues than what we had
+ * negotiated in our request. Need a reset to see if we can't
+ * get back to a working state.
+ */
+ dev_err(&adapter->pdev->dev,
+ "Requested %d queues, but PF only gave us %d.\n",
+ num_req_queues,
+ adapter->vsi_res->num_queue_pairs);
+ adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
+ adapter->num_req_queues = adapter->vsi_res->num_queue_pairs;
+ iavf_schedule_reset(adapter);
+ return -ENODEV;
+ }
+ adapter->num_req_queues = 0;
+
+ hw_enc_features = NETIF_F_SG |
+ NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM |
+ NETIF_F_HIGHDMA |
+ NETIF_F_SOFT_FEATURES |
+ NETIF_F_TSO |
+ NETIF_F_TSO_ECN |
+ NETIF_F_TSO6 |
+ NETIF_F_SCTP_CRC |
+ NETIF_F_RXHASH |
+ NETIF_F_RXCSUM |
+ 0;
+
+ /* advertise to stack only if offloads for encapsulated packets is
+ * supported
+ */
+ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ENCAP) {
+ hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL |
+ NETIF_F_GSO_GRE |
+ NETIF_F_GSO_GRE_CSUM |
+ NETIF_F_GSO_IPXIP4 |
+ NETIF_F_GSO_IPXIP6 |
+ NETIF_F_GSO_UDP_TUNNEL_CSUM |
+ NETIF_F_GSO_PARTIAL |
+ 0;
+
+ if (!(vfres->vf_cap_flags &
+ VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
+ netdev->gso_partial_features |=
+ NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+ netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM;
+ netdev->hw_enc_features |= NETIF_F_TSO_MANGLEID;
+ netdev->hw_enc_features |= hw_enc_features;
+ }
+ /* record features VLANs can make use of */
+ netdev->vlan_features |= hw_enc_features | NETIF_F_TSO_MANGLEID;
+
+ /* Write features and hw_features separately to avoid polluting
+ * with, or dropping, features that are set when we registered.
+ */
+ hw_features = hw_enc_features;
+
+ /* Enable VLAN features if supported */
+ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
+ hw_features |= (NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX);
+ /* Enable cloud filter if ADQ is supported */
+ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ)
+ hw_features |= NETIF_F_HW_TC;
+
+ netdev->hw_features |= hw_features;
+
+ netdev->features |= hw_features;
+
+ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
+ netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+ netdev->priv_flags |= IFF_UNICAST_FLT;
+
+ /* Do not turn on offloads when they are requested to be turned off.
+ * TSO needs minimum 576 bytes to work correctly.
+ */
+ if (netdev->wanted_features) {
+ if (!(netdev->wanted_features & NETIF_F_TSO) ||
+ netdev->mtu < 576)
+ netdev->features &= ~NETIF_F_TSO;
+ if (!(netdev->wanted_features & NETIF_F_TSO6) ||
+ netdev->mtu < 576)
+ netdev->features &= ~NETIF_F_TSO6;
+ if (!(netdev->wanted_features & NETIF_F_TSO_ECN))
+ netdev->features &= ~NETIF_F_TSO_ECN;
+ if (!(netdev->wanted_features & NETIF_F_GRO))
+ netdev->features &= ~NETIF_F_GRO;
+ if (!(netdev->wanted_features & NETIF_F_GSO))
+ netdev->features &= ~NETIF_F_GSO;
+ }
+
+ adapter->vsi.id = adapter->vsi_res->vsi_id;
+
+ adapter->vsi.back = adapter;
+ adapter->vsi.base_vector = 1;
+ adapter->vsi.work_limit = IAVF_DEFAULT_IRQ_WORK;
+ vsi->netdev = adapter->netdev;
+ vsi->qs_handle = adapter->vsi_res->qset_handle;
+ if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
+ adapter->rss_key_size = vfres->rss_key_size;
+ adapter->rss_lut_size = vfres->rss_lut_size;
+ } else {
+ adapter->rss_key_size = IAVF_HKEY_ARRAY_SIZE;
+ adapter->rss_lut_size = IAVF_HLUT_ARRAY_SIZE;
+ }
+
+ return 0;
+}
+
+/**
+ * iavf_init_task - worker thread to perform delayed initialization
+ * @work: pointer to work_struct containing our data
+ *
+ * This task completes the work that was begun in probe. Due to the nature
+ * of VF-PF communications, we may need to wait tens of milliseconds to get
+ * responses back from the PF. Rather than busy-wait in probe and bog down the
+ * whole system, we'll do it in a task so we can sleep.
+ * This task only runs during driver init. Once we've established
+ * communications with the PF driver and set up our netdev, the watchdog
+ * takes over.
+ **/
+static void iavf_init_task(struct work_struct *work)
+{
+ struct iavf_adapter *adapter = container_of(work,
+ struct iavf_adapter,
+ init_task.work);
+ struct net_device *netdev = adapter->netdev;
+ struct iavf_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+ int err, bufsz;
+
+ switch (adapter->state) {
+ case __IAVF_STARTUP:
+ /* driver loaded, probe complete */
+ adapter->flags &= ~IAVF_FLAG_PF_COMMS_FAILED;
+ adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
+ err = iavf_set_mac_type(hw);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to set MAC type (%d)\n",
+ err);
+ goto err;
+ }
+ err = iavf_check_reset_complete(hw);
+ if (err) {
+ dev_info(&pdev->dev, "Device is still in reset (%d), retrying\n",
+ err);
+ goto err;
+ }
+ hw->aq.num_arq_entries = IAVF_AQ_LEN;
+ hw->aq.num_asq_entries = IAVF_AQ_LEN;
+ hw->aq.arq_buf_size = IAVF_MAX_AQ_BUF_SIZE;
+ hw->aq.asq_buf_size = IAVF_MAX_AQ_BUF_SIZE;
+
+ err = iavf_init_adminq(hw);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to init Admin Queue (%d)\n",
+ err);
+ goto err;
+ }
+ err = iavf_send_api_ver(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Unable to send to PF (%d)\n", err);
+ iavf_shutdown_adminq(hw);
+ goto err;
+ }
+ adapter->state = __IAVF_INIT_VERSION_CHECK;
+ goto restart;
+ case __IAVF_INIT_VERSION_CHECK:
+ if (!iavf_asq_done(hw)) {
+ dev_err(&pdev->dev, "Admin queue command never completed\n");
+ iavf_shutdown_adminq(hw);
+ adapter->state = __IAVF_STARTUP;
+ goto err;
+ }
+
+ /* aq msg sent, awaiting reply */
+ err = iavf_verify_api_ver(adapter);
+ if (err) {
+ if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
+ err = iavf_send_api_ver(adapter);
+ else
+ dev_err(&pdev->dev, "Unsupported PF API version %d.%d, expected %d.%d\n",
+ adapter->pf_version.major,
+ adapter->pf_version.minor,
+ VIRTCHNL_VERSION_MAJOR,
+ VIRTCHNL_VERSION_MINOR);
+ goto err;
+ }
+ err = iavf_send_vf_config_msg(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Unable to send config request (%d)\n",
+ err);
+ goto err;
+ }
+ adapter->state = __IAVF_INIT_GET_RESOURCES;
+ goto restart;
+ case __IAVF_INIT_GET_RESOURCES:
+ /* aq msg sent, awaiting reply */
+ if (!adapter->vf_res) {
+ bufsz = sizeof(struct virtchnl_vf_resource) +
+ (IAVF_MAX_VF_VSI *
+ sizeof(struct virtchnl_vsi_resource));
+ adapter->vf_res = kzalloc(bufsz, GFP_KERNEL);
+ if (!adapter->vf_res)
+ goto err;
+ }
+ err = iavf_get_vf_config(adapter);
+ if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) {
+ err = iavf_send_vf_config_msg(adapter);
+ goto err;
+ } else if (err == I40E_ERR_PARAM) {
+ /* We only get ERR_PARAM if the device is in a very bad
+ * state or if we've been disabled for previous bad
+ * behavior. Either way, we're done now.
+ */
+ iavf_shutdown_adminq(hw);
+ dev_err(&pdev->dev, "Unable to get VF config due to PF error condition, not retrying\n");
+ return;
+ }
+ if (err) {
+ dev_err(&pdev->dev, "Unable to get VF config (%d)\n",
+ err);
+ goto err_alloc;
+ }
+ adapter->state = __IAVF_INIT_SW;
+ break;
+ default:
+ goto err_alloc;
+ }
+
+ if (iavf_process_config(adapter))
+ goto err_alloc;
+ adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+
+ adapter->flags |= IAVF_FLAG_RX_CSUM_ENABLED;
+
+ netdev->netdev_ops = &iavf_netdev_ops;
+ iavf_set_ethtool_ops(netdev);
+ netdev->watchdog_timeo = 5 * HZ;
+
+ /* MTU range: 68 - 9710 */
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = IAVF_MAX_RXBUFFER - IAVF_PACKET_HDR_PAD;
+
+ if (!is_valid_ether_addr(adapter->hw.mac.addr)) {
+ dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n",
+ adapter->hw.mac.addr);
+ eth_hw_addr_random(netdev);
+ ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
+ } else {
+ adapter->flags |= IAVF_FLAG_ADDR_SET_BY_PF;
+ ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
+ ether_addr_copy(netdev->perm_addr, adapter->hw.mac.addr);
+ }
+
+ timer_setup(&adapter->watchdog_timer, iavf_watchdog_timer, 0);
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+
+ adapter->tx_desc_count = IAVF_DEFAULT_TXD;
+ adapter->rx_desc_count = IAVF_DEFAULT_RXD;
+ err = iavf_init_interrupt_scheme(adapter);
+ if (err)
+ goto err_sw_init;
+ iavf_map_rings_to_vectors(adapter);
+ if (adapter->vf_res->vf_cap_flags &
+ VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
+ adapter->flags |= IAVF_FLAG_WB_ON_ITR_CAPABLE;
+
+ err = iavf_request_misc_irq(adapter);
+ if (err)
+ goto err_sw_init;
+
+ netif_carrier_off(netdev);
+ adapter->link_up = false;
+
+ if (!adapter->netdev_registered) {
+ err = register_netdev(netdev);
+ if (err)
+ goto err_register;
+ }
+
+ adapter->netdev_registered = true;
+
+ netif_tx_stop_all_queues(netdev);
+ if (CLIENT_ALLOWED(adapter)) {
+ err = iavf_lan_add_device(adapter);
+ if (err)
+ dev_info(&pdev->dev, "Failed to add VF to client API service list: %d\n",
+ err);
+ }
+
+ dev_info(&pdev->dev, "MAC address: %pM\n", adapter->hw.mac.addr);
+ if (netdev->features & NETIF_F_GRO)
+ dev_info(&pdev->dev, "GRO is enabled\n");
+
+ adapter->state = __IAVF_DOWN;
+ set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
+ iavf_misc_irq_enable(adapter);
+ wake_up(&adapter->down_waitqueue);
+
+ adapter->rss_key = kzalloc(adapter->rss_key_size, GFP_KERNEL);
+ adapter->rss_lut = kzalloc(adapter->rss_lut_size, GFP_KERNEL);
+ if (!adapter->rss_key || !adapter->rss_lut)
+ goto err_mem;
+
+ if (RSS_AQ(adapter)) {
+ adapter->aq_required |= IAVF_FLAG_AQ_CONFIGURE_RSS;
+ mod_timer_pending(&adapter->watchdog_timer, jiffies + 1);
+ } else {
+ iavf_init_rss(adapter);
+ }
+ return;
+restart:
+ schedule_delayed_work(&adapter->init_task, msecs_to_jiffies(30));
+ return;
+err_mem:
+ iavf_free_rss(adapter);
+err_register:
+ iavf_free_misc_irq(adapter);
+err_sw_init:
+ iavf_reset_interrupt_capability(adapter);
+err_alloc:
+ kfree(adapter->vf_res);
+ adapter->vf_res = NULL;
+err:
+ /* Things went into the weeds, so try again later */
+ if (++adapter->aq_wait_count > IAVF_AQ_MAX_ERR) {
+ dev_err(&pdev->dev, "Failed to communicate with PF; waiting before retry\n");
+ adapter->flags |= IAVF_FLAG_PF_COMMS_FAILED;
+ iavf_shutdown_adminq(hw);
+ adapter->state = __IAVF_STARTUP;
+ schedule_delayed_work(&adapter->init_task, HZ * 5);
+ return;
+ }
+ schedule_delayed_work(&adapter->init_task, HZ);
+}
+
+/**
+ * iavf_shutdown - Shutdown the device in preparation for a reboot
+ * @pdev: pci device structure
+ **/
+static void iavf_shutdown(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ iavf_close(netdev);
+
+ /* Prevent the watchdog from running. */
+ adapter->state = __IAVF_REMOVE;
+ adapter->aq_required = 0;
+
+#ifdef CONFIG_PM
+ pci_save_state(pdev);
+
+#endif
+ pci_disable_device(pdev);
+}
+
+/**
+ * iavf_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in iavf_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * iavf_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *netdev;
+ struct iavf_adapter *adapter = NULL;
+ struct iavf_hw *hw = NULL;
+ int err;
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
+ }
+ }
+
+ err = pci_request_regions(pdev, iavf_driver_name);
+ if (err) {
+ dev_err(&pdev->dev,
+ "pci_request_regions failed 0x%x\n", err);
+ goto err_pci_reg;
+ }
+
+ pci_enable_pcie_error_reporting(pdev);
+
+ pci_set_master(pdev);
+
+ netdev = alloc_etherdev_mq(sizeof(struct iavf_adapter),
+ IAVF_MAX_REQ_QUEUES);
+ if (!netdev) {
+ err = -ENOMEM;
+ goto err_alloc_etherdev;
+ }
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ pci_set_drvdata(pdev, netdev);
+ adapter = netdev_priv(netdev);
+
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+
+ hw = &adapter->hw;
+ hw->back = adapter;
+
+ adapter->msg_enable = BIT(DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
+ adapter->state = __IAVF_STARTUP;
+
+ /* Call save state here because it relies on the adapter struct. */
+ pci_save_state(pdev);
+
+ hw->hw_addr = ioremap(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (!hw->hw_addr) {
+ err = -EIO;
+ goto err_ioremap;
+ }
+ hw->vendor_id = pdev->vendor;
+ hw->device_id = pdev->device;
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
+ hw->subsystem_vendor_id = pdev->subsystem_vendor;
+ hw->subsystem_device_id = pdev->subsystem_device;
+ hw->bus.device = PCI_SLOT(pdev->devfn);
+ hw->bus.func = PCI_FUNC(pdev->devfn);
+ hw->bus.bus_id = pdev->bus->number;
+
+ /* set up the locks for the AQ, do this only once in probe
+ * and destroy them only once in remove
+ */
+ mutex_init(&hw->aq.asq_mutex);
+ mutex_init(&hw->aq.arq_mutex);
+
+ spin_lock_init(&adapter->mac_vlan_list_lock);
+ spin_lock_init(&adapter->cloud_filter_list_lock);
+
+ INIT_LIST_HEAD(&adapter->mac_filter_list);
+ INIT_LIST_HEAD(&adapter->vlan_filter_list);
+ INIT_LIST_HEAD(&adapter->cloud_filter_list);
+
+ INIT_WORK(&adapter->reset_task, iavf_reset_task);
+ INIT_WORK(&adapter->adminq_task, iavf_adminq_task);
+ INIT_WORK(&adapter->watchdog_task, iavf_watchdog_task);
+ INIT_DELAYED_WORK(&adapter->client_task, iavf_client_task);
+ INIT_DELAYED_WORK(&adapter->init_task, iavf_init_task);
+ schedule_delayed_work(&adapter->init_task,
+ msecs_to_jiffies(5 * (pdev->devfn & 0x07)));
+
+ /* Setup the wait queue for indicating transition to down status */
+ init_waitqueue_head(&adapter->down_waitqueue);
+
+ return 0;
+
+err_ioremap:
+ free_netdev(netdev);
+err_alloc_etherdev:
+ pci_release_regions(pdev);
+err_pci_reg:
+err_dma:
+ pci_disable_device(pdev);
+ return err;
+}
+
+#ifdef CONFIG_PM
+/**
+ * iavf_suspend - Power management suspend routine
+ * @pdev: PCI device information struct
+ * @state: unused
+ *
+ * Called when the system (VM) is entering sleep/suspend.
+ **/
+static int iavf_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ int retval = 0;
+
+ netif_device_detach(netdev);
+
+ while (test_and_set_bit(__IAVF_IN_CRITICAL_TASK,
+ &adapter->crit_section))
+ usleep_range(500, 1000);
+
+ if (netif_running(netdev)) {
+ rtnl_lock();
+ iavf_down(adapter);
+ rtnl_unlock();
+ }
+ iavf_free_misc_irq(adapter);
+ iavf_reset_interrupt_capability(adapter);
+
+ clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
+
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
+
+ pci_disable_device(pdev);
+
+ return 0;
+}
+
+/**
+ * iavf_resume - Power management resume routine
+ * @pdev: PCI device information struct
+ *
+ * Called when the system (VM) is resumed from sleep/suspend.
+ **/
+static int iavf_resume(struct pci_dev *pdev)
+{
+ struct iavf_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+ u32 err;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ /* pci_restore_state clears dev->state_saved so call
+ * pci_save_state to restore it.
+ */
+ pci_save_state(pdev);
+
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot enable PCI device from suspend.\n");
+ return err;
+ }
+ pci_set_master(pdev);
+
+ rtnl_lock();
+ err = iavf_set_interrupt_capability(adapter);
+ if (err) {
+ rtnl_unlock();
+ dev_err(&pdev->dev, "Cannot enable MSI-X interrupts.\n");
+ return err;
+ }
+ err = iavf_request_misc_irq(adapter);
+ rtnl_unlock();
+ if (err) {
+ dev_err(&pdev->dev, "Cannot get interrupt vector.\n");
+ return err;
+ }
+
+ schedule_work(&adapter->reset_task);
+
+ netif_device_attach(netdev);
+
+ return err;
+}
+
+#endif /* CONFIG_PM */
+/**
+ * iavf_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * iavf_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device. The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void iavf_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct iavf_vlan_filter *vlf, *vlftmp;
+ struct iavf_mac_filter *f, *ftmp;
+ struct iavf_cloud_filter *cf, *cftmp;
+ struct iavf_hw *hw = &adapter->hw;
+ int err;
+ /* Indicate we are in remove and not to run reset_task */
+ set_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section);
+ cancel_delayed_work_sync(&adapter->init_task);
+ cancel_work_sync(&adapter->reset_task);
+ cancel_delayed_work_sync(&adapter->client_task);
+ if (adapter->netdev_registered) {
+ unregister_netdev(netdev);
+ adapter->netdev_registered = false;
+ }
+ if (CLIENT_ALLOWED(adapter)) {
+ err = iavf_lan_del_device(adapter);
+ if (err)
+ dev_warn(&pdev->dev, "Failed to delete client device: %d\n",
+ err);
+ }
+
+ /* Shut down all the garbage mashers on the detention level */
+ adapter->state = __IAVF_REMOVE;
+ adapter->aq_required = 0;
+ adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
+ iavf_request_reset(adapter);
+ msleep(50);
+ /* If the FW isn't responding, kick it once, but only once. */
+ if (!iavf_asq_done(hw)) {
+ iavf_request_reset(adapter);
+ msleep(50);
+ }
+ iavf_free_all_tx_resources(adapter);
+ iavf_free_all_rx_resources(adapter);
+ iavf_misc_irq_disable(adapter);
+ iavf_free_misc_irq(adapter);
+ iavf_reset_interrupt_capability(adapter);
+ iavf_free_q_vectors(adapter);
+
+ if (adapter->watchdog_timer.function)
+ del_timer_sync(&adapter->watchdog_timer);
+
+ cancel_work_sync(&adapter->adminq_task);
+
+ iavf_free_rss(adapter);
+
+ if (hw->aq.asq.count)
+ iavf_shutdown_adminq(hw);
+
+ /* destroy the locks only once, here */
+ mutex_destroy(&hw->aq.arq_mutex);
+ mutex_destroy(&hw->aq.asq_mutex);
+
+ iounmap(hw->hw_addr);
+ pci_release_regions(pdev);
+ iavf_free_all_tx_resources(adapter);
+ iavf_free_all_rx_resources(adapter);
+ iavf_free_queues(adapter);
+ kfree(adapter->vf_res);
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+ /* If we got removed before an up/down sequence, we've got a filter
+ * hanging out there that we need to get rid of.
+ */
+ list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
+ list_del(&f->list);
+ kfree(f);
+ }
+ list_for_each_entry_safe(vlf, vlftmp, &adapter->vlan_filter_list,
+ list) {
+ list_del(&vlf->list);
+ kfree(vlf);
+ }
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ spin_lock_bh(&adapter->cloud_filter_list_lock);
+ list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list, list) {
+ list_del(&cf->list);
+ kfree(cf);
+ }
+ spin_unlock_bh(&adapter->cloud_filter_list_lock);
+
+ free_netdev(netdev);
+
+ pci_disable_pcie_error_reporting(pdev);
+
+ pci_disable_device(pdev);
+}
+
+static struct pci_driver iavf_driver = {
+ .name = iavf_driver_name,
+ .id_table = iavf_pci_tbl,
+ .probe = iavf_probe,
+ .remove = iavf_remove,
+#ifdef CONFIG_PM
+ .suspend = iavf_suspend,
+ .resume = iavf_resume,
+#endif
+ .shutdown = iavf_shutdown,
+};
+
+/**
+ * iavf_init_module - Driver Registration Routine
+ *
+ * iavf_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+static int __init iavf_init_module(void)
+{
+ int ret;
+
+ pr_info("iavf: %s - version %s\n", iavf_driver_string,
+ iavf_driver_version);
+
+ pr_info("%s\n", iavf_copyright);
+
+ iavf_wq = alloc_workqueue("%s", WQ_UNBOUND | WQ_MEM_RECLAIM, 1,
+ iavf_driver_name);
+ if (!iavf_wq) {
+ pr_err("%s: Failed to create workqueue\n", iavf_driver_name);
+ return -ENOMEM;
+ }
+ ret = pci_register_driver(&iavf_driver);
+ return ret;
+}
+
+module_init(iavf_init_module);
+
+/**
+ * iavf_exit_module - Driver Exit Cleanup Routine
+ *
+ * iavf_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+static void __exit iavf_exit_module(void)
+{
+ pci_unregister_driver(&iavf_driver);
+ destroy_workqueue(iavf_wq);
+}
+
+module_exit(iavf_exit_module);
+
+/* iavf_main.c */
projects / kernel.git / commitdiff